CN113867576A

CN113867576A - Electronic device

Info

Publication number: CN113867576A
Application number: CN202110731731.3A
Authority: CN
Inventors: 金旻首; 崔载旭; 金胤镐
Original assignee: Samsung Display Co Ltd
Current assignee: Samsung Display Co Ltd
Priority date: 2020-06-30
Filing date: 2021-06-30
Publication date: 2021-12-31
Also published as: US11460967B2; US11782566B2; KR20220002788A; US20240036692A1; US20210405818A1; EP3933559A1; US20230025515A1

Abstract

An electronic device is disclosed. The electronic device includes: a display layer; and a sensing layer including a plurality of sensing units. Each of the plurality of sensing units includes at least one sub-sensing unit. The at least one sub-sensing unit includes: a first pattern including a first portion and a second portion; a first crossing pattern including a first crossing portion and a second crossing portion; a second crossing pattern; and a bridge pattern. The second portion extends in a first crossing direction crossing the first direction and a second direction crossing the first direction to face the first crossing portion, and the second crossing portion extends in the first crossing direction to face the first portion.

Description

Electronic device

This application claims priority and benefit from korean patent application No. 10-2020-0080471, filed on 30/6/2020, which is incorporated herein by reference in its entirety.

Technical Field

Aspects of some embodiments of the present disclosure herein relate to an electronic device with improved sensing reliability.

Background

The electronic device may sense an external input applied from outside of the electronic device. The external input may be an input of a user. The user's input may include various types of external input such as a portion of the user's body, light, heat, pen, pressure, and the like. The electronic device may recognize the coordinates of the pen using an electromagnetic resonance (EMR) method, or may recognize the coordinates of the pen using an Active Electrostatic (AES) method.

The above information disclosed in this background section is only for enhancement of understanding of the background, and therefore the information discussed in this background section does not necessarily constitute prior art.

Disclosure of Invention

Aspects of some embodiments of the present disclosure include an electronic device with relatively improved sensing reliability.

According to some embodiments of the inventive concept, an electronic device includes: a display layer; and a sensor layer on the display layer, an active area and a peripheral area adjacent to the active area being defined on the sensor layer, and the sensor layer including a plurality of sensing cells in the active area and a plurality of lines in the peripheral area. According to some embodiments, each of the plurality of sensing units includes at least one sub-sensing unit, and the at least one sub-sensing unit may include: a first pattern including a first portion and a second portion protruding from the first portion; a first crossing pattern including a first crossing portion and a second crossing portion protruding from the first crossing portion; a second crossing pattern spaced apart from the first crossing pattern with the first portion positioned between the second crossing pattern and the first crossing pattern; and a bridge pattern electrically connected to the first and second crossing patterns and crossing the first portion to be insulated from the first portion, the first portion may extend in a first direction, the first crossing portion may extend in a second direction crossing the first direction, the second portion may extend in a first crossing direction crossing the first and second directions to face the first crossing portion, and the second crossing portion may extend in the first crossing direction to face the first portion.

According to some embodiments, the plurality of second portions may surround the plurality of second intersections, respectively.

According to some embodiments, the first pattern may have a shape in which a shape symmetrical with respect to a first axis extending in the first direction is symmetrical with respect to a second axis extending in the second direction, the first crossing pattern may have a shape symmetrical with respect to the second axis, and the first crossing pattern and the second crossing pattern may have shapes symmetrical with each other with respect to the first axis.

According to some embodiments, the first pattern may further include a third portion protruding from the first portion in the second direction, and the second portion may further include: a first branch portion adjacent to the first portion and extending in the second direction; a second branch portion adjacent to the first branch portion and extending in the first crossing direction; and a third branch portion adjacent to the second branch portion, facing the first intersection portion, and extending in the first direction.

According to some embodiments, the second intersection may be between the second portion and the third portion.

According to some embodiments, the first crossing pattern may further include a third crossing portion protruding from the first crossing portion in the first direction, and the second crossing portion may include: a first intersecting branch portion adjacent to the first intersecting portion and extending in the first direction; a second intersecting branch portion adjacent to the first intersecting branch portion and extending in the first intersecting direction; and a third intersecting branch portion adjacent to the second intersecting branch portion, facing the first portion, and extending in the second direction.

According to some embodiments, the first intersection may be between the second intersection and the third intersection.

According to some embodiments, the first pattern may further include: a third portion spaced apart from the second portion with the first crossing pattern therebetween and protruding from the first portion, the second portion may include: a first branch portion adjacent to the first portion and extending in the second direction; a second branch portion adjacent to the first branch portion and extending in the first crossing direction; and a third branch portion adjacent to the second branch portion, facing the first intersection portion, and extending in the first direction, and the third portion may include: a fourth branch portion adjacent to the first portion and extending in the second direction; a fifth branch portion adjacent to the fourth branch portion and extending in a second intersecting direction intersecting the first intersecting direction; and a sixth branch portion adjacent to the fifth branch portion and extending in the first direction.

According to some embodiments, the first crossing pattern may further include a third crossing portion protruding from the first crossing portion, and the second portion may surround the second crossing portion, and the third crossing portion may surround the third portion.

According to some embodiments, the first pattern may have a shape symmetrical with respect to a first axis extending in the first direction, and the first and second crossing patterns may have shapes symmetrical with each other with respect to the first axis.

According to some embodiments, the first pattern may have a shape symmetrical with respect to a first point at which a first axis extending in the first direction and a second axis extending in the second direction cross each other, and the first and second crossing patterns may have shapes symmetrical with each other with respect to the first point.

According to some embodiments, the first pattern may further include: a third portion spaced apart from the second portion with the first intersection located therebetween and protruding from the first portion, the second portion may include: a first branch portion adjacent to the first portion and extending in the second direction; a second branch portion adjacent to the first branch portion and extending in the first crossing direction; and a third branch portion adjacent to the second branch portion and extending in the first direction, and the third portion may include: a fourth branch portion adjacent to the first portion and extending in the second direction; a fifth branch portion adjacent to the fourth branch portion and extending in a second intersecting direction intersecting the first intersecting direction; and a sixth branch portion adjacent to the fifth branch portion and extending in the first direction.

According to some embodiments, the second crossing pattern may include: a third intersection extending in the second direction and spaced apart from the first intersection with the first portion located therebetween; and a fourth intersection protruding from the third intersection, and the second intersection may surround the second portion, and the third portion may surround the fourth intersection.

According to some embodiments, each of the first pattern, the first crossing pattern, and the second crossing pattern may have a shape symmetrical with respect to a second axis extending in the second direction.

According to some embodiments, the first pattern, the first crossing pattern, the second crossing pattern, and the bridge pattern may have a mesh structure.

According to some embodiments, the at least one sub sensing unit may be provided as a plurality of sub sensing units, and the plurality of lines may include a first line and a second line electrically connected to the plurality of sub sensing units.

According to some embodiments, the first line may be electrically connected to the first pattern, and the second line may be electrically connected to the first crossing pattern, the second crossing pattern, and the bridge pattern.

According to some embodiments of the inventive concept, an electronic device includes: a display layer; and a sensor layer on the display layer, an active area and a peripheral area adjacent to the active area being defined on the sensor layer, the sensor layer including a plurality of sensing cells in the active area and a plurality of lines in the peripheral area, and the sensor layer sensing an input of the input device, wherein each of the plurality of sensing cells includes at least one sub-sensing cell, the at least one sub-sensing cell including: an electrode including a first portion extending in a first direction and a plurality of second portions protruding from the first portion; and a cross electrode including a plurality of first cross portions extending in a second direction crossing the first direction, a plurality of second cross portions protruding from the plurality of first cross portions, respectively, and a bridge pattern crossing the first portion to be insulated from the first portion and electrically connected to the plurality of cross patterns, each of the plurality of second portions including: a first branch portion extending in the second direction; a second branch portion extending from the first branch portion and extending in a crossing direction crossing the first direction and the second direction; and a third branch portion extending from the second branch portion and extending in the first direction, and the sensor layer senses an input through a touch by a change in mutual capacitance generated between the electrodes and the crossing electrodes, and senses an input through the input device by a change in capacitance of each of the electrodes and the crossing electrodes.

According to some embodiments, each of the plurality of sensing units may include a plurality of sub-sensing units, the plurality of lines may include a first line and a second line, the first line may be electrically connected to the electrode of each of the plurality of sub-sensing units, and the second line may be electrically connected to the crossing electrode of each of the plurality of sub-sensing units.

According to some embodiments, an outermost portion of the electrode region defined by the plurality of second portions and the plurality of second intersections may have an octagonal shape when viewed on a plane.

According to some embodiments, the second branch portion of each of the plurality of second portions may be adjacent to each of the plurality of second intersections.

According to some embodiments, each of the electrodes and the crossing electrodes may have a shape symmetrical with respect to a first axis extending in the first direction.

According to some embodiments, each of the electrodes and the crossing electrodes may have a shape symmetrical with respect to a second axis extending in the second direction.

According to some embodiments, each of the electrodes and the crossing electrodes may have a shape that is point-symmetrical with respect to a first point at which a first axis extending in the first direction and a second axis extending in the second direction cross each other.

Drawings

The accompanying drawings are included to provide a further understanding of embodiments according to the inventive concepts, and are incorporated in and constitute a part of this specification. The drawings illustrate aspects of some embodiments of the inventive concept and together with the description serve to explain the principles of aspects of embodiments according to the inventive concept. In the drawings:

fig. 1 is a perspective view of an electronic device according to some embodiments of the inventive concept;

FIG. 2 is a schematic block diagram illustrating an electronic device and an input device according to some embodiments of the inventive concepts;

fig. 3 is a cross-sectional view of an electronic device according to some embodiments of the inventive concept;

fig. 4 is a plan view of a sensor layer according to some embodiments of the inventive concept.

Fig. 5A is a plan view illustrating one of a plurality of sensing units according to some embodiments of the inventive concept;

fig. 5B is a cross-sectional view taken along line I-I' of fig. 5A, according to some embodiments of the inventive concept;

fig. 5C is an enlarged plan view of an area AA' of fig. 5A according to some embodiments of the inventive concept;

fig. 6 to 8 are plan views illustrating one of a plurality of sensing units according to some embodiments of the inventive concept;

fig. 9 to 13 are plan views illustrating sub-sensing units according to some embodiments of the inventive concept;

fig. 14A is a view illustrating a sensor layer in a first mode according to some embodiments of the inventive concept;

fig. 14B is a view illustrating a sensor layer in a second mode according to some embodiments of the inventive concept; and

fig. 14C and 14D are views illustrating a sensor layer according to some embodiments of the inventive concept.

Detailed Description

In this specification, it will also be understood that when an element (or a region, layer, or portion) is referred to as being "on," "connected to," or "coupled to" another element, it can be directly on/directly connected/directly coupled to the other element or intervening third elements may also be present.

Like reference numerals refer to like elements throughout. Further, in the drawings, the thickness, scale, and size of components are exaggerated for clarity of illustration.

The term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood that, although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one component from another. For example, a first element could be termed a second element in one embodiment, and a second element could be termed a first element in another embodiment, without departing from the scope of the appended claims. Unless indicated to the contrary, singular terms may include the plural.

Further, "below … …," "below … …," "above … …," "above," and the like are used to explain the relative association of components shown in the figures. Terms may be relative concepts and are described based on the directions expressed in the drawings.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Furthermore, terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will be defined expressly herein unless otherwise interpreted in an idealized or overly formal sense.

The meaning of "comprising" or "comprises" describes a property, a fixed number, a step, an operation, an element, a component, or a group thereof, but does not exclude other properties, fixed numbers, steps, operations, elements, components, or groups thereof.

In the following, aspects of some embodiments of the inventive concept will be described in more detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of an electronic device according to some embodiments of the inventive concept.

Referring to fig. 1, the electronic device 1000 may be a device activated according to an electrical signal. For example, the electronic device 1000 may be a mobile phone, a tablet PC, a car navigation system, a game console, or a wearable device, although embodiments according to the present disclosure are not limited thereto. Fig. 1 shows an example in which the electronic device 1000 is a mobile phone.

The electronic device 1000 may display an image at the active area 1000A and include the inactive area 1000 NA. The active area 1000A may include a surface (e.g., a display surface) defined by a first direction DR1 and a second direction DR 2. The thickness direction of the electronic device 1000 may be parallel to the third direction DR3, and the third direction DR3 intersects the first direction DR1 and the second direction DR2 (e.g., the third direction DR3 is perpendicular or orthogonal to the first direction DR1 and the second direction DR 2). Accordingly, a front surface (or a top surface) and a rear surface (or a bottom surface) of each of the members constituting the electronic device 1000 may be defined based on the third direction DR 3.

The electronic device 1000 may sense an input applied from the outside thereof. The external input may be an input of a user. The input of the user may include various types of external input such as a part of the user's body, light, heat, or pressure.

The electronic device 1000 shown in fig. 1 may sense an input by a touch of a user and an input through the input device 2000. The input device 2000 may refer to a device other than the body of the user. For example, the input device 2000 may be an active pen, a stylus pen, a touch pen, or an electronic pen. Hereinafter, a case where the input device 2000 is an active pen will be described as an example.

The electronic device 1000 and the input device 2000 may perform bidirectional communication. The electronic device 1000 may provide the uplink signal to the input device 2000. For example, the uplink signal may include a synchronization signal or information of the electronic apparatus 1000, but is not particularly limited thereto. The input device 2000 may provide downlink signals to the electronic device 1000. The downlink signal may include a synchronization signal or status information of the input device 2000. For example, the downlink signal includes coordinate information of the input device 2000, battery information of the input device 2000, inclination information of the input device 2000, and/or various information stored in the input device 2000, but embodiments according to the present disclosure are not particularly limited thereto.

Fig. 2 is a schematic block diagram illustrating an electronic device and an input device according to some embodiments of the inventive concepts.

Referring to fig. 2, an electronic device 1000 may include a display layer 100 and a sensor layer 200.

The display layer 100 may be configured to substantially produce an image. The display layer 100 may be an emissive display layer. For example, the display layer 100 may be an organic light emitting display layer, a quantum dot display layer, a micro LED display layer, or a nano LED display layer.

The sensor layer 200 may be positioned on the display layer 100. The sensor layer 200 may sense an external input applied from the outside. The sensor layer 200 may sense both input through the body 3000 of the user and input through the input device 2000.

The sensor layer 200 may operate by time division driving. For example, the sensor layer 200 may be repeatedly driven alternately in the first mode and the second mode. The first mode may be a mode for sensing an input through the body 3000 of the user, and the second mode may be a mode for sensing an input through the input device 2000.

In the second mode, the sensor layer 200 may provide the uplink signal ULS to the input device 2000. When input device 2000 receives uplink signal ULS and is synchronized with electronic device 1000, input device 2000 may provide downlink signal DLS to sensor layer 200.

The input device 2000 may include a power supply 2100, a memory 2200, a control unit 2300, a transmitting unit 2400, a receiving unit 2500, and a pen electrode 2600. However, the components constituting the input device 2000 are not limited to the above-listed components. For example, the input device 2000 may further include an electrode switch for converting the pen electrode 2600 into a signal transmission mode or a signal reception mode, a pressure sensor for sensing pressure, a rotation sensor for sensing rotation, and the like.

The power supply 2100 may include a battery or a high-capacity capacitor that supplies power to the input device 2000. The memory 2200 may store function information of the input device 2000. The control unit 2300 may control the operation of the input device 2000. Each of the transmitting unit 2400 and the receiving unit 2500 may communicate with the electronic device 1000 through the pen electrode 2600. The transmitting unit 2400 may be referred to as a signal generator or a transmitting circuit, and the receiving unit 2500 may be referred to as a signal receiver or a receiving circuit. The sensor layer 200 may acquire coordinates or inclination of the input device 2000 through the pen electrode 2600. The input area of the pen electrode 2600 may have a first width WE.

Fig. 3 is a cross-sectional view of an electronic device according to some embodiments of the inventive concept.

Referring to fig. 3, the display layer 100 may include a base layer 110, a circuit layer 120, a light emitting element layer 130, and an encapsulation layer 140.

The substrate layer 110 may be a member that provides a surface of the substrate on which the circuit layer 120 is positioned. The land layer 110 may be a glass substrate, a metal substrate, or a polymer substrate. However, the base layer 110 according to some embodiments of the inventive concept is not limited thereto. For example, the matrix layer 110 may be an inorganic layer, an organic layer, or a composite layer.

The base layer 110 may have a multi-layer structure. For example, the base layer 110 comprises a first synthetic resin layer, silicon oxide (SiO) positioned on the first synthetic resin layer_x) A layer, an amorphous silicon (a-Si) layer positioned on the silicon oxide layer, and a second synthetic resin layer positioned on the amorphous silicon layer. The silicon oxide layer and the amorphous silicon layer may be referred to as a bulk barrier layer. Each of the first synthetic resin layer and the second synthetic resin layer may include a polyimide-based resin. Further, each of the first synthetic resin layer and the second synthetic resin layer may include at least one of an acrylate-based resin, a methacrylate-based resin, a polyisoprene-based resin, a vinyl-based resin, an epoxy-based resin, a polyurethane-based resin, a cellulose-based resin, a silicone-based resin, a polyamide-based resin, and a perylene-based resin. In the present specification, the "to" type resin means a functional group including the "to" type resin.

The circuit layer 120 may be positioned on the base layer 110. The circuit layer 120 may include an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line. The insulating, semiconductor, and conductive layers can be formed on the base layer 110, such as by coating or vapor deposition, and then the insulating, semiconductor, and conductive layers can be selectively patterned by a number of photolithography processes. Hereinafter, an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line included in the circuit layer 120 may be provided.

At least one inorganic layer may be positioned on the top surface of the base layer 110. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may be provided as a plurality of layers. The inorganic layers of the multilayer may constitute barrier layers and/or buffer layers. According to some embodiments, the display layer 100 is shown to include a buffer layer BFL.

The buffer layer BFL may improve bonding force between the base layer 110 and the semiconductor pattern. The buffer layer BFL may include silicon oxide layers and silicon nitride layers, which may be alternately stacked.

The semiconductor pattern may be positioned on the buffer layer BFL. The semiconductor pattern may include polysilicon. However, embodiments according to the inventive concept are not limited thereto. For example, the semiconductor pattern may include amorphous silicon or a metal oxide.

Fig. 3 shows only a part of the semiconductor pattern. For example, the semiconductor pattern may also be positioned in other areas. The semiconductor pattern may be arranged throughout the pixels with a certain rule. The semiconductor patterns have different electrical properties according to whether the semiconductor patterns are doped or not. The semiconductor pattern may include a first region having high conductivity and a second region having low conductivity. The first region may be doped with an N-type dopant or a P-type dopant. The P-type transistor may include a doped region doped with a P-type dopant and the N-type transistor may include a doped region doped with an N-type dopant. The second region may be an undoped region or may be doped at a concentration less than that of the first region.

The first region may have a conductivity greater than that of the second region, and may substantially function as an electrode or a signal line. The second region may substantially correspond to an active region (or channel) of the transistor. That is, a part of the semiconductor pattern may be an active region of the transistor, another part may be a source or a drain of the transistor, and another part may be a connection electrode or a connection signal line.

Each of the pixels may have an equivalent circuit including seven transistors, one capacitor, and a light emitting element, and an equivalent circuit diagram of the pixel may be modified in various forms. In fig. 3, one transistor 100PC and a light emitting device 100PE included in a pixel are shown as an example.

The source SC1, the active region a1, and the drain D1 of the transistor 100PC may be provided from a semiconductor pattern. The source SC1 and the drain D1 may extend in opposite directions from the active region a1 in cross section. Fig. 3 shows a portion of the connection signal line SCL formed of a semiconductor pattern. According to some embodiments, the connection signal line SCL may be connected to the drain D1 of the transistor 100PC on a plane.

The first insulating layer 10 may be positioned on the buffer layer BFL. The first insulating layer 10 commonly overlaps the plurality of pixels to cover the semiconductor pattern. The first insulating layer 10 may include an inorganic layer and/or an organic layer, and have a single-layer or multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. According to some embodiments, the first insulating layer 10 may include a single silicon oxide layer. The insulating layer of the circuit layer 120, which will be described later, and the first insulating layer 10 may be an inorganic layer and/or an organic layer, and may have a single-layer or multi-layer structure. The inorganic layer may include at least one of the above materials, but embodiments according to the present disclosure are not limited thereto.

The gate G1 is positioned on the first insulating layer 10. Each of the gate electrodes G1 may be a part of a metal pattern. The gate G1 overlaps the active region a 1. The gate G1 may be used as a mask in a process in which a semiconductor pattern is doped.

The second insulating layer 20 may be positioned on the first insulating layer 10 to cover the gate electrode G1. The second insulating layer 20 may commonly overlap the pixels. The second insulating layer 20 may be an inorganic layer and/or an organic layer, and has a single-layer or multi-layer structure. According to some embodiments, the second insulating layer 20 may include a single silicon oxide layer.

A third insulating layer 30 may be positioned on the second insulating layer 20. According to some embodiments, the third insulating layer 30 may be a single silicon oxide layer.

The first connection electrode CNE1 may be positioned on the third insulation layer 30. The first connection electrode CNE1 may be connected to the signal line SCL through a contact hole CNT-1 passing through the first to third insulating layers 10 to 30.

The fourth insulation layer 40 may be positioned on the third insulation layer 30. The fourth insulating layer 40 may be a single silicon oxide layer. The fifth insulating layer 50 may be positioned on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer.

The second connection electrode CNE2 may be positioned on the fifth insulating layer 50. The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through a contact hole CNT-2 passing through the fourth and fifth insulating

layers

40 and 50.

The sixth insulating layer 60 may be positioned on the fifth insulating layer 50 to cover the second connection electrode CNE 2. The sixth insulating layer 60 may be an organic layer. The light emitting element layer 130 may be positioned on the circuit layer 120. The light emitting element layer 130 may include a light emitting element. For example, the light emitting element layer 130 may include an organic light emitting material, quantum dots, quantum rods, micro LEDs, or nano LEDs. The light emitting device 100PE may include a first electrode AE, an emission layer EL, and a second electrode CE.

The first electrode AE may be positioned on the sixth insulating layer 60. The first electrode AE may be connected to the second connection electrode CNE2 through a contact hole CNT-3 passing through the sixth insulating layer 60.

The pixel defining layer 70 may be positioned on the sixth insulating layer 60 to cover a portion of the first electrode AE. An opening 70-OP may be defined in the pixel defining layer 70. The opening 70-OP of the pixel defining layer 70 may expose at least a portion of the first electrode AE. According to some embodiments, the emission area PXA may be defined to correspond to a portion of the area of the first electrode AE exposed by the opening 70-OP. The non-transmission area NPXA may surround the transmission area PXA.

The emissive layer EL may be positioned on the first electrode AE. The emission layer EL may be positioned in the opening 70-OP. That is, the emission layer EL may be positioned separately from each of the pixels. When the emission layers EL are disposed separately from each of the pixels, each of the emission layers EL may emit light having at least one of blue, red, and green colors. However, embodiments according to the inventive concept are not limited thereto. For example, the emission layer EL may be generally disposed to be connected to the pixel. In this case, the emission layer EL may provide blue or white light.

The second electrode CE may be positioned on the emission layer EL. The second electrode CE may have a unitary shape and be commonly positioned on the plurality of pixels. The common voltage may be supplied to the second electrode CE, which may be referred to as a common electrode.

According to some embodiments, a hole control layer may be positioned between the first electrode AE and the emissive layer EL. The hole control layer may be commonly positioned in the emission area PXA and the non-emission area NPXA. The hole control layer may include a hole transport layer, and may further include a hole injection layer. The electron control layer may be positioned between the emission layer EL and the second electrode CE. The electron control layer may include an electron transport layer, and may further include an electron injection layer. The hole control layer and the electron control layer may be commonly formed in a plurality of pixels by using an open mask.

An encapsulation layer 140 may be positioned on the light emitting element layer 130. The encapsulation layer 140 may include an inorganic layer, an organic layer, and an inorganic layer sequentially stacked, but the layer constituting the encapsulation layer 140 is not limited thereto.

The inorganic layer may protect the light emitting element layer 130 from moisture and oxygen, and the organic layer may protect the light emitting element layer 130 from foreign substances such as dust particles. The inorganic layer may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The organic layer may include an acrylic organic layer, but embodiments according to the inventive concept are not limited thereto.

The sensor layer 200 may be positioned on the display layer 100 by a continuous process. In this case, the sensor layer 200 may be represented as being disposed directly on the display layer 100. Direct arrangement may mean that the third component is not positioned between the sensor layer 200 and the display layer 100. That is, a separate adhesive member may not be positioned between the sensor layer 200 and the display layer 100. In this case, the thickness of the electronic device 1000 may be thin.

The sensor layer 200 may include a base insulating layer 201, a first conductive layer 202, a sensing insulating layer 203, a second conductive layer 204, and a cover insulating layer 205.

The base insulating layer 201 may be an inorganic layer including any one of silicon nitride, silicon oxynitride, and silicon oxide. Alternatively, the base insulating layer 201 may be an organic layer including an epoxy resin, an acrylic resin, or an imide-based resin. The base insulating layer 201 may have a single-layer structure or a multi-layer structure in which a plurality of layers are stacked in the third direction DR 3.

Each of the first conductive layer 202 and the second conductive layer 204 may have a single-layer structure or a multi-layer structure in which a plurality of layers are stacked in the third direction DR 3.

The conductive layer having a single-layer structure may include a metal layer or a transparent conductive layer. The metal layer may comprise molybdenum, silver, titanium, copper, aluminum, or alloys thereof. The transparent conductive layer may include a transparent conductive oxide such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), zinc oxide (ZnO), Indium Zinc Tin Oxide (IZTO), or the like. In addition, the transparent conductive layer may include a conductive polymer such as PEDOT, metal nanowire, graphene, or the like.

The conductive layer having a multi-layer structure may include a metal layer. The metal layer may have a three-layer structure of titanium/aluminum/titanium. The conductive layer having a multi-layered structure may include at least one metal layer and at least one transparent conductive layer.

At least one of the sensing insulating layer 203 and the capping insulating layer 205 may include an inorganic layer. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxynitride, zirconium oxide, and hafnium oxide.

A parasitic capacitance Cb may be generated between the sensor layer 200 and the second electrode CE. As the distance between the sensor layer 200 and the second electrode CE becomes closer, the value of the parasitic capacitance Cb increases. As the parasitic capacitance Cb increases, the ratio of the amount of change in capacitance to the reference value decreases. The change in capacitance may mean a change in capacitance occurring before and after an input through an input unit, for example, the input device 2000 (see fig. 2) or the body 3000 (see fig. 2) of the user.

The driving chip processing the signal sensed by the sensor layer 200 may perform a leveling operation (or referred to as a correction operation) of removing a value corresponding to the parasitic capacitance Cb from the sensed signal. The ratio of the amount of change in capacitance to the reference value can increase the sensing sensitivity through the leveling operation.

However, there is a difference in the ability to remove the value corresponding to the parasitic capacitance Cb according to the specification of the driving chip. For example, if the maximum parasitic capacitance Cb is about 500 picofarads and the capacitance value that can be removed from the signal sensed by the sensor layer 200 through the driving chip is about 200 picofarads, the reference value is not sufficiently lowered by the driving chip. In this case, the ratio of the amount of change in capacitance compared to the reference value is insignificant, and therefore, a malfunction in which the drive chip cannot recognize the amount of change in capacitance as noise or cannot recognize touch coordinates may occur. According to the inventive concept, the electrode structure of the sensor layer 200 may be modified to provide the maximum value of the parasitic capacitance Cb to a certain value (e.g., a set value or a predetermined value) or less. In this case, even when the performance of the driving chip is relatively low, the accuracy of the coordinate recognition can be improved. The certain value (for example, the set value or the predetermined value) may be about 200 picofarads, but is not particularly limited thereto.

Referring to fig. 4, an active area 200A and a peripheral area 200N may be defined on the sensor layer 200. The active area 200A may be an area activated according to an electrical signal. For example, the active area 200A may be an area where an input is sensed. The active area 200A may be referred to as a sensing area 200A. The active area 200A may overlap with the active area 1000A of the electronic device 1000.

The peripheral area 200N may be adjacent to the active area 200A. The peripheral region 200N may surround the active region 200A.

The sensor layer 200 may include a base insulating layer 201, a plurality of sensing cells 210, and a plurality of lines 220. A plurality of sensing units 210 may be positioned in the active area 200A. A plurality of lines 220 may be positioned in the peripheral region 200N.

The sensor layer 200 may operate in a first mode in which information on an external input is acquired through a change in mutual capacitance between electrodes provided in the plurality of sensing cells 210 or a second mode in which an input through the input device 2000 (see fig. 2) is sensed through a change in capacitance between electrodes provided in at least one sub-sensing cell 210A. The first mode and the second mode will be described later.

The plurality of sensing units 210 may be arranged in the first direction DR1 and the second direction DR 2. The plurality of lines 220 may be electrically connected to at least one sub sensing cell 210A of each of the plurality of sensing cells 210.

Fig. 5A is a plan view illustrating one of a plurality of sensing units according to some embodiments of the inventive concept, fig. 5B is a sectional view taken along line I-I 'of fig. 5A according to some embodiments of the inventive concept, and fig. 5C is an enlarged plan view of an area AA' of fig. 5A according to some embodiments of the inventive concept.

Referring to fig. 5A to 5C, one sensing unit 210 may include at least one sub sensing unit 210A. Fig. 5A shows that one sensing cell 210 includes one sub-sensing cell 210A. In this case, one sub sensing cell 210A may mean one sensing cell 210.

The sub-sensing units 210A may have a first pitch PC. The first pitch PC may be about 3.5mm to about 4.5 mm. For example, the first pitch PC may be about 4 mm.

The sensing unit 210 may include an electrode 211, a crossing electrode 212, and a plurality of dummy electrodes 213. A portion of electrode 211 may cross a portion of crossing electrode 212. Sensor layer 200 (see fig. 4) may obtain information about an external input through a change in mutual capacitance between electrodes 211 and crossing electrodes 212.

The electrode 211 may have a symmetrical shape with respect to a first axis AX1 extending in the first direction DR1 and a second axis AX2 extending in the second direction DR 2. The electrode 211 may be referred to as a first pattern 211. The electrode 211 may include a first portion 211P1, a plurality of second portions 211P2, and a plurality of third portions 211P 3. First portion 211P1, a plurality of second portions 211P2, and a plurality of third portions 211P3 may be provided integrally with each other.

The first portion 211P1 may extend in a first direction DR 1.

The plurality of second portions 211P2 may be symmetrical to each other with respect to the first axis AX1 and the second axis AX 2. The plurality of second portions 211P2 may protrude from the first portions 211P 1. At least one second lobe 211P2 of the plurality of second lobes 211P2 may extend in a first crossing direction DRa crossing the first direction DR1 and the second direction DR 2. Another second lobe 211P2 of the plurality of second lobes 211P2 may extend in a second crossing direction DRb crossing the first crossing direction DRa. The first crossing direction DRa and the second crossing direction DRb may be orthogonal to each other. The second portion 211P2 may surround the second intersection 212P 2. The second portion 211P2 may include a first branch portion 211BP1, a second branch portion 211BP2, and a third branch portion 211BP 3. The first branch portion 211BP1, the second branch portion 211BP2, and the third branch portion 211BP3 may be provided integrally with each other.

The first branch portion 211BP1 may protrude from the first portion 211P 1. One end of the first branch portion 211BP1 may be adjacent to the first portion 211P1, and the other end of the first branch portion 211BP1 may be adjacent to the second branch portion 211BP 2. The first branch portion 211BP1 may extend in the second direction DR 2.

The second branch portion 211BP2 may protrude from the first branch portion 211BP 1. One end of the second branch portion 211BP2 may be adjacent to the first branch portion 211BP1, and the other end of the second branch portion 211BP2 may be adjacent to the third branch portion 211BP 3. The second branch portion 211BP2 may extend in the first crossing direction DRa or the second crossing direction DRb.

The third branch portion 211BP3 may protrude from the second branch portion 211BP 2. One end of the third branch portion 211BP3 may be adjacent to the second branch portion 211BP2, and the other end of the third branch portion 211BP3 may be adjacent to the first intersection 212P 1. The third branch 211BP3 may extend in the first direction DR 1.

The plurality of third portions 211P3 may be symmetrical to each other with respect to the first axis AX1 and the second axis AX 2. The plurality of third portions 211P3 may face the plurality of second intersections 212P2, respectively. A plurality of third portions 211P3 may protrude from the first portion 211P1 in the second direction DR 2. The plurality of third portions 211P3 may be spaced apart from the plurality of second portions 211P2, respectively, and the plurality of second intersections 212P2 are located between the plurality of third portions 211P3 and the plurality of second portions 211P 2.

The crossing electrodes 212 may include a first crossing pattern 212PT1, a second crossing pattern 212PT2, and a bridge pattern 212B.

The first cross pattern 212PT1 may have a symmetrical shape with respect to the second axis AX 2. The first crossing pattern 212PT1 may include a first crossing 212P1 and a plurality of second crossings 212P 2. The first intersection 212P1 and the plurality of second intersections 212P2 may be provided integrally with each other.

The first intersection 212P1 may extend in the second direction DR 2.

The plurality of second intersections 212P2 may be symmetrical to each other with respect to the second axis AX 2. Each of the plurality of second intersections 212P2 may face the first portion 211P 1. A plurality of second intersections 212P2 may protrude from the first intersections 212P 1. One second crossing portion 212P2 of the plurality of second crossing portions 212P2 may extend in the first crossing direction DRa. Another second intersection 212P2 of the plurality of second intersections 212P2 may extend in the second intersection direction DRb. A plurality of second intersections 212P2 may be positioned between a plurality of second portions 211P2 and a plurality of third portions 211P3, respectively. Second intersection 212P2 may include first intersection branch 212BP1, second intersection branch 212BP2, and third intersection branch 212BP 3. The first cross branch 212BP1, the second cross branch 212BP2, and the third cross branch 212BP3 may be provided integrally with each other.

The first cross branch 212BP1 may protrude from the first cross portion 212P 1. One end of the first intersecting branch 212BP1 may be adjacent to the first intersecting branch 212P1 and the other end of the first intersecting branch 212BP1 may be adjacent to the second intersecting branch 212BP 2. The first cross branch 212BP1 may extend in a first direction DR 1.

The second cross branch 212BP2 may protrude from the first cross branch 212BP 1. One end of the second intersecting branch 212BP2 may be adjacent to the first intersecting branch 212BP1, and the other end of the second intersecting branch 212BP2 may be adjacent to the third intersecting branch 212BP 3. The second crossing branch 212BP2 may extend in the first crossing direction DRa or the second crossing direction DRb.

The third intersecting branch 212BP3 may protrude from the second intersecting branch 212BP 2. One end of the third intersecting branch 212BP3 may be adjacent to the second intersecting branch 212BP2, and the other end of the third intersecting branch 212BP3 may be adjacent to the first portion 211P 1. The third cross branch 212BP3 may extend in the second direction DR 2.

The second cross pattern 212PT2 may be spaced apart from the first cross pattern 212PT1, and the first portion 211P1 is located between the second cross pattern 212PT2 and the first cross pattern 212PT 1. The first and second crossing patterns 212PT1 and 212PT2 may be symmetrical to each other with respect to the first axis AX 1.

The bridge pattern 212B may electrically connect the first cross pattern 212PT1 to the second cross pattern 212PT 2. The bridge pattern 212B may cross the first portion 211P1 to be insulated from the first portion 211P 1.

The bridge pattern 212B may be positioned on the base insulating layer 201. The sensing insulating layer 203 may be positioned on the bridge pattern 212B. The sensing insulating layer 203 may cover the bridge pattern 212B. The sensing insulating layer 203 may include an inorganic material, an organic material, or a composite material.

The first and second crossing patterns 212PT1 and 212PT2 and the electrode 211 may be positioned on the sensing insulating layer 203.

A plurality of first contact holes CNT1 may be defined to pass through the sensing insulation layer 203 in the third direction DR 3. Each of the first and second crossing patterns 212PT1 and 212PT2 may be electrically connected to the bridge pattern 212B through each of the plurality of first contact holes CNT 1.

The cover insulating layer 205 may be positioned on the first and second crossing patterns 212PT1 and 212PT2 and the electrode 211. The cover insulating layer 205 may cover the first and second crossing patterns 212PT1 and 212PT2 and the electrode 211. The cover insulating layer 205 may include an inorganic material, an organic material, or a composite material.

In fig. 5B, the bridge pattern 212B may have a bottom bridge structure in which the bridge pattern 212B is positioned under the first and second cross patterns 212PT1 and 212PT2 and the electrode 211, but the structure of the sensor layer 200 (see fig. 4) according to some embodiments of the inventive concept is not limited thereto. For example, the sensor layer 200 (see fig. 4) according to some embodiments of the inventive concept may have a top bridge structure in which the bridge pattern 212B is positioned on the first and second cross patterns 212PT1 and 212PT2 and the electrode 211.

The electrode 211, the crossing electrode 212, and the plurality of dummy electrodes 213 may have a mesh structure. In fig. 5C, a portion of the second cross pattern 212PT2, a portion of the electrode 211, and a portion of the plurality of dummy electrodes 213 are shown as an example in fig. 5C. The openings OP defined by the mesh structure may overlap the transmission area PXA (see fig. 3).

According to the inventive concept, the plurality of second portions 211P2, the plurality of second crossing portions 212P2, and the plurality of third portions 211P3 may be positioned adjacent to each other. The plurality of second portions 211P2, the plurality of second intersections 212P2, and the plurality of third portions 211P3 may have an interdigitated (or so-called staggered, staggered) shape with each other. A length of a boundary on which each of the plurality of second portions 211P2, each of the plurality of second crossing portions 212P2, and each of the plurality of third portions 211P3 face each other may be increased. Thus, the mutual capacitance between electrode 211 and interdigitated electrode 212 may be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 (see fig. 4) may be improved.

The outermost portion of the electrode region BD1 defined by the plurality of second portions 211P2, the plurality of second intersections 212P2, and the plurality of third portions 211P3 may have an octagonal shape when viewed on a plane. For example, the outermost portion of the region defined by the plurality of second portions 211P2 surrounding the plurality of second intersections 212P2 and the plurality of third portions 211P3, respectively, may have an octagonal shape.

When the region in which the electrodes 211 and the intersecting electrodes 212 intersect with each other to be insulated from each other has a rectangular shape by portions extending in the first direction DR1 and the second direction DR2, respectively, in the region in which the direction of the extension is changed from the first direction DR1 to the second direction DR2, the interval between the electrodes 211 and the intersecting electrodes 212 may increase, and thus, the deviation of the interval between the electrodes 211 and the intersecting electrodes 212 may increase. However, according to the inventive concept, the electrode area BD1 in which the electrodes 211 and the intersecting electrodes 212 intersect each other to be insulated from each other may have an octagonal shape by portions extending in the first direction DR1, the second direction DR2, the first intersecting direction DRa, and the second intersecting direction DRb, respectively. The deviation of the interval between the electrode 211 and the crossing electrode 212 can be reduced. Therefore, it is possible to reduce a deviation of the amount of change in the mutual capacitance between the electrode 211 and the intersecting electrode 212 before and after the input of the body 3000 (see fig. 2) of the user according to the position of the body 3000 (see fig. 2) of the user. Accordingly, the accuracy of the coordinates calculated using the sensor layer 200 (see fig. 4) of the input of the user's body 3000 (see fig. 2) can be improved. In addition, the sensing reliability of the sensor layer 200 (see fig. 4) may be improved.

Further, according to the inventive concept, a deviation of the interval between the electrode 211 and the crossing electrode 212 may be reduced. It is possible to reduce a deviation of the amount of change in the mutual capacitance between each of the electrodes 211 and the intersecting electrodes 212 before and after the input device 2000 (see fig. 2) is sensed and the input device 2000 (see fig. 2) according to the position of the input device 2000 (see fig. 2). Accordingly, the accuracy of the sensing coordinates of the input device 2000 (see fig. 2) calculated using the sensor layer 200 (see fig. 4) can be improved. In addition, the sensing reliability of the sensor layer 200 (see fig. 4) may be improved.

That is, it may be prevented that the amounts of change in capacitance measured within one sensing unit 210 in an input provided in the form of a line are different from each other, such as when writing letters or drawing pictures using the input device 2000 (see fig. 2), and thus, the linearity of the input may be improved, and the sensing reliability of the sensor layer 200 (see fig. 4) may be improved.

A plurality of dummy electrodes 213 may surround the electrodes 211 and the crossing electrodes 212, respectively. When a plurality of dummy electrodes 213 are arranged, the difference in transmittance or reflectance between portions on which the electrodes 211 or the intersecting electrodes 212 are not positioned can be reduced. Accordingly, a phenomenon in which a specific boundary (e.g., a boundary between the electrode 211 and the intersecting electrode 212 or a boundary between portions on which the electrode 211 and the intersecting electrode 212 are not located) is visually recognized may be prevented.

The plurality of dummy electrodes 213 may be in a floating state. The plurality of dummy electrodes 213 float to reduce a parasitic capacitance Cb (see fig. 3) generated between the sensor layer 200 (see fig. 3) and the second electrode CE (see fig. 3). According to some embodiments of the inventive concept, the sensor layer 200 (see fig. 3) may provide the maximum value of the parasitic capacitance Cb (see fig. 3) to a certain value (e.g., a set or predetermined value) or less. The ratio of the amount of change in capacitance to the reference value can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 (see fig. 3) with respect to the change amount of capacitance can be improved.

Fig. 6 to 8 are plan views illustrating one of a plurality of sensing units according to some embodiments of the inventive concept.

Referring to fig. 6, one sensing unit 210a may include one sub sensing unit 210 Aa. However, this is merely an example. For example, the number of the sub sensing units 210Aa disposed in one sensing unit 210a according to some embodiments of the inventive concept is not limited thereto. For example, one sensing unit 210a may include a plurality of sub sensing units 210 Aa.

According to some embodiments of the inventive concept, the electrodes may be referred to as interdigitated electrodes, and similarly, the interdigitated electrodes may be referred to as electrodes.

The electrode 211a may include a first electrode pattern 211PT1a, a second electrode pattern 211PT2a, and a bridge pattern 211 Ba.

The first electrode pattern 211PT1a may have a symmetrical shape with respect to the first axis AX 1. The first electrode pattern 211PT1a may include a first section 211P1a, a plurality of second sections 211P2a, and a plurality of third sections 211P3 a. The first portion 211Pa, the plurality of second portions 211P2a, and the plurality of third portions 211P3a may be provided integrally with each other.

The first portion 211P1a may extend in the first direction DR 1.

The plurality of second portions 211P2a may be symmetrical to each other with respect to the first axis AX 1. Each of the plurality of second portions 211P2a may face the first intersection 212P1 a. The plurality of second portions 211P2a may protrude from the first portion 211P1 a. One second lobe 211P2a of the plurality of second lobes 211P2a may extend in the first crossing direction DRa. Another second lobe 211P2a of the plurality of second lobes 211P2a may extend in the second cross direction DRb. Second portion 211P2a may surround second intersection 212P2 a. The second portion 211P2a may include a first branch portion 211BP1a, a second branch portion 211BP2a, and a third branch portion 211BP3 a. The first branch portion 211BP1a, the second branch portion 211BP2a, and the third branch portion 211BP3a may be provided integrally with each other.

The first branch portion 211BP1a may protrude from the first portion 211P1 a. One end of the first branch portion 211BP1a may be adjacent to the first portion 211P1a, and the other end of the first branch portion 211BP1a may be adjacent to the second branch portion 211BP2 a. The first branch portion 211BP1a may extend in the second direction DR 2.

The second branch portion 211BP2a may protrude from the first branch portion 211BP1 a. One end of the second branch portion 211BP2a may be adjacent to the first branch portion 211BP1a, and the other end of the second branch portion 211BP2a may be adjacent to the third branch portion 211BP3 a. The second branch portion 211BP2a may extend in the first crossing direction DRa or the second crossing direction DRb.

The third branch portion 211BP3a may protrude from the second branch portion 211BP2 a. One end of the third branch portion 211BP3a may be adjacent to the second branch portion 211BP2a, and the other end of the third branch portion 211BP3a may be adjacent to the first intersection 212P1 a. The third branch portion 211BP3a may extend in the first direction DR 1.

The plurality of third portions 211P3a may be symmetrical with respect to the first axis AX 1. The plurality of third portions 211P3a may face the plurality of second intersections 212P2a, respectively. A plurality of third portions 211P3a may protrude from the first portion 211P1a in the second direction DR 2. Third plurality of portions 211P3a may be separated from second plurality of portions 211P2a, respectively, and second plurality of intersections 212P2a are located between third plurality of portions 211P3a and second plurality of portions 211P2 a.

The second electrode pattern 211PT2a may be spaced apart from the first electrode pattern 211PT1a, and the first intersection 212P1a is located between the second electrode pattern 211PT2a and the first electrode pattern 211PT1 a. The first electrode pattern 211PT1a and the second electrode pattern 211PT2a may be symmetrical to each other with respect to the second axis AX 2.

The bridge pattern 211Ba may electrically connect the first electrode pattern 211PT1a to the second electrode pattern 211PT2 a. The bridge pattern 211Ba may cross the second axis AX2 and the first intersection 212P1a while maintaining insulation from the first intersection 212P1 a.

The crossing electrode 212a may have a symmetrical shape with respect to the first axis AX1 and the second axis AX 2. The crossing electrode 212a may include a first crossing 212P1a and a plurality of second crossings 212P2 a. The first intersection 212P1a and the plurality of second intersections 212P2a may be provided integrally with each other.

The first intersection 212P1a may extend in the second direction DR 2.

The plurality of second intersections 212P2a may be symmetrical to each other with respect to the first axis AX1 and the second axis AX 2. A plurality of second intersections 212P2a may protrude from the first intersections 212P1 a. At least one second crossing 212P2a of the plurality of second crossings 212P2a may extend in the first crossing direction DRa. Another second intersection 212P2a of the plurality of second intersections 212P2a may extend in the second intersecting direction DRb. Second intersection 212P2a may be positioned between second portion 211P2a and third portion 211P3 a. Each of the plurality of second intersecting portions 212P2a may include a first intersecting branch 212BP1a, a second intersecting branch 212BP2a, and a third intersecting branch 212BP3 a. The first cross branch 212BP1a, the second cross branch 212BP2a, and the third cross branch 212BP3a may be provided integrally with one another.

The first cross branch 212BP1a may protrude from the first cross portion 212P1 a. One end of the first intersecting branch 212BP1a may be adjacent to the first intersecting branch 212P1a, and the other end of the first intersecting branch 212BP1a may be adjacent to the second intersecting branch 212BP2 a. The first cross branch 212BP1a may extend in a first direction DR 1.

The second cross branch 212BP2a may protrude from the first cross branch 212BP1 a. One end of the second intersecting branch 212BP2a may be adjacent to the first intersecting branch 212BP1a, and the other end of the second intersecting branch 212BP2a may be adjacent to the third intersecting branch 212BP3 a. The second crossing branch 212BP2a may extend in the first crossing direction DRa or the second crossing direction DRb.

The third intersecting branch 212BP3a may protrude from the second intersecting branch 212BP2 a. One end of the third intersecting branch 212BP3a may be adjacent to the second intersecting branch 212BP2a, and the other end of the third intersecting branch 212BP3a may be adjacent to the first portion 211P1 a. The third cross branch 212BP3a may extend in the second direction DR 2.

The electrode 211a, the crossing electrode 212a, and the plurality of dummy electrodes 213 may have a mesh structure.

According to some embodiments of the inventive concept, the plurality of second portions 211P2a, the plurality of second intersections 212P2a, and the plurality of third portions 211P3a may be positioned adjacent to each other. The plurality of second portions 211P2a, the plurality of second intersections 212P2a, and the plurality of third portions 211P3a may have shapes that are interdigitated with each other. The length of the boundary between each of the plurality of second portions 211P2a, each of the plurality of second intersections 212P2a, and each of the plurality of third portions 211P3a may be increased. Therefore, the mutual capacitance between the electrode 211a and the crossing electrode 212a can be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 (see fig. 4) may be improved.

The outermost portion of the electrode region BD2 defined by the plurality of second portions 211P2a, the plurality of second intersections 212P2a, and the plurality of third portions 211P3a may have an octagonal shape when viewed on a plane.

Fig. 7 to 8 are plan views illustrating one of a plurality of sensing units according to some embodiments of the inventive concept. In the description of fig. 7, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted. However, this is an example, and in this specification, a section may be referred to as an intersection, and an intersection may be referred to as a section.

Referring to fig. 7, one sensing cell 210 may include a plurality of sub sensing cells 210 Ab. The plurality of sub sensing units 210Ab may be arranged in the first direction DR1 and the second direction DR 2. For example, 9 sub-sensing units 210Ab may be provided.

Each of the plurality of sub sensing units 210Ab may have the same shape as the sub sensing unit 210A of fig. 5A (see fig. 5A).

Each of the plurality of sub-sensing units 210Ab may have the second pitch PCb. The second pitch PCb of the plurality of sub-sensing units 210Ab may be smaller than a first width WE (see fig. 2) of the input area of the pen electrode 2600 of the input device 2000. The second pitch PCb may be about 1.0mm to about 2.0 mm. For example, the second pitch PCb may be about 1.5 mm. The surface area of the input region of the input device 2000 may be smaller than the surface area of each of the plurality of sub sensing units 210 Ab.

The pen electrode 2600 can include a first pen electrode 2610 and a second pen electrode 2620. The first pen electrode 2610 may be positioned at one end of the input device 2000. The second pen electrode 2620 may be positioned on a side surface of the input device 2000. The sensor layer 200 (see fig. 4) may acquire coordinates of the input device 2000 through the first pen electrode 2610 and acquire a tilt of the input device 2000 through the second pen electrode 2620.

According to some embodiments of the inventive concept, when sensing the input device 2000, an input area of the input device 2000 overlapping the sensor layer 200 (see fig. 4) may cover an area of the sub-sensing unit 210 Ab. The difference between the first capacitance CAP1a and the second capacitance CAP1b can be reduced, the first capacitance CAP1a is sensed by the first pen electrode 2610 when the input device 2000 is positioned at a first location within one sensing unit 210, and the second capacitance CAP1b is sensed by the first pen electrode 2610 when the input device 2000 is positioned at a second location within one sensing unit 210. That is, it is possible to reduce a deviation of capacitance between the input device 2000 and the sensor layer 200 (see fig. 4) according to a position of the input device 2000 within one sensing cell 210. Accordingly, the accuracy of the coordinates and sensing reliability of the sensor layer 200 (see fig. 4) of the input device 2000 may be improved.

Further, according to some embodiments of the inventive concept, a difference between the first capacitance CAP2a and the second capacitance CAP2b may be reduced, the first capacitance CAP2a being sensed by the second pen electrode 2620 when the input device 2000 is positioned at a first location within one sensing unit 210, and the second capacitance CAP2b being sensed by the second pen electrode 2620 when the input device 2000 is positioned at a second location within one sensing unit 210. That is, it is possible to reduce a deviation of capacitance between the input device 2000 and the sensor layer 200 (see fig. 4) according to a position of the input device 2000 within one sensing cell 210. Accordingly, the tilt accuracy and sensing reliability of the sensor layer 200 (see fig. 4) of the input device 2000 can be improved.

Fig. 8 is a plan view illustrating one of a plurality of sensing units according to some embodiments of the inventive concept. In the description of fig. 8, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted.

Referring to fig. 8, one sensing cell 210 may include a plurality of sub sensing cells 210 Ac. The plurality of sub sensing units 210Ac may be arranged in the first direction DR1 and the second direction DR 2. For example, 25 sub-sensing units 210Ac may be provided. However, this is merely an example. For example, the number of the plurality of sub sensing units 210Ac according to some embodiments of the inventive concept is not limited thereto. For example, the number of the plurality of sub sensing units 210Ac may be set to 16 or 4 units.

Each of the plurality of sub sensing units 210Ac may have the same shape as the sub sensing unit 210A of fig. 5A (see fig. 5A). Each of the plurality of sub sensing units 210Ac may have a third pitch pc. The third pitch PCc of the plurality of sub sensing units 210Ac may be smaller than the first width WE (see fig. 2) of the input region of the pen electrode 2600 (see fig. 2) of the input device 2000 (see fig. 2). The third pitch pc may be smaller than the second pitch PCb (see fig. 7).

According to some embodiments of the inventive concept, a surface area of an input region of the input device 2000 (see fig. 2) may be smaller than a surface area of each of the plurality of sub sensing units 210 Ac. Accordingly, the sensor layer 200 (see fig. 4) can precisely sense the coordinates input through the input device 2000 (see fig. 2).

Fig. 9 is a plan view of a sub sensing unit according to some embodiments of the inventive concept. In the description in fig. 9, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted.

Referring to fig. 4 and 9, the plurality of sensing units 210 may include at least one sub sensing unit 210 Ad. The at least one sub sensing unit 210Ad may include an electrode 211d, a crossing electrode 212d, and a plurality of dummy electrodes 213. A portion of electrode 211d may intersect a portion of intersecting electrode 212 d. Sensor layer 200 may obtain information about an external input through a change in mutual capacitance between electrode 211d and interdigitated electrode 212 d.

The electrode 211d may have a symmetrical shape with respect to the second axis AX 2. Electrode 211d may include first portion 211P1d, a plurality of second portions 211P2d, and a plurality of third portions 211P3 d. First portion 211P1d, a plurality of second portions 211P2d, and a plurality of third portions 211P3d may be provided integrally with each other.

The first portion 211P1d may extend in the first direction DR 1.

The plurality of second portions 211P2d may be symmetrical to each other with respect to the second axis AX 2. The plurality of second portions 211P2d may be adjacent to the plurality of second intersections 212P2 d. The plurality of second portions 211P2d may protrude from the first portion 211P1 d. Each of the plurality of second portions 211P2d may include a first branch portion 211BP1d, a second branch portion 211BP2d, and a third branch portion 211BP3 d. The first branch portion 211BP1d, the second branch portion 211BP2d, and the third branch portion 211BP3d may be provided integrally with each other.

The first branch portion 211BP1d may protrude from the first portion 211P1 d. One end of the first branch portion 211BP1d may be adjacent to the first portion 211P1d, and the other end of the first branch portion 211BP1d may be adjacent to the second branch portion 211BP2 d. The first branch portion 211BP1d may extend in the second direction DR 2.

The second branch portion 211BP2d may protrude from the first branch portion 211BP1 d. One end of the second branch portion 211BP2d may be adjacent to the first branch portion 211BP1d, and the other end of the second branch portion 211BP2d may be adjacent to the third branch portion 211BP3 d. The second branch portion 211BP2d may extend in the first crossing direction DRa or the second crossing direction DRb.

The third branch portion 211BP3d may protrude from the second branch portion 211BP2 d. One end of the third branch portion 211BP3d may be adjacent to the second branch portion 211BP2d, and the other end of the third branch portion 211BP3d may be adjacent to the first intersection 212P1 d. The third branch portion 211BP3d may extend in the first direction DR 1.

Third plurality of portions 211P3d may be spaced apart from second plurality of portions 211P2d, respectively, and first portion 211P1d is located between third plurality of portions 211P3d and second plurality of portions 211P2 d. The plurality of third portions 211P3d may surround the plurality of fourth intersections 212P4d, respectively. The plurality of third portions 211P3d may be symmetrical to each other with respect to the second axis AX 2. The plurality of third portions 211P3d may be adjacent to the plurality of fourth intersections 212P4 d. A plurality of third portions 211P3d may protrude from the first portion 211P1 d. Each of the plurality of third portions 211P3d may include a fourth branch portion 211BP4d, a fifth branch portion 211BP5d, and a sixth branch portion 211BP6 d. The fourth branch 211BP4d, the fifth branch 211BP5d, and the sixth branch 211BP6d may be provided integrally with each other.

The fourth branch portion 211BP4d may protrude from the first portion 211P1 d. One end of the fourth branch 211BP4d may be adjacent to the first portion 211P1d, and the other end of the fourth branch 211BP4d may be adjacent to the fifth branch 211BP5 d. The fourth branch 211BP4d may extend in the second direction DR 2.

The fifth branch 211BP5d may protrude from the fourth branch 211BP4 d. One end of the fifth branch 211BP5d may be adjacent to the fourth branch 211BP4d, and the other end of the fifth branch 211BP5d may be adjacent to the sixth branch 211BP6 d. The fifth branch 211BP5d may extend in the first crossing direction DRa or the second crossing direction DRb.

The sixth branch portion 211BP6d may protrude from the fifth branch portion 211BP5 d. One end of the sixth branch 211BP6d may be adjacent to the fifth branch 211BP5d, and the other end of the sixth branch 211BP6d may be adjacent to the third intersection 212P3 d. The sixth branch portion 211BP6d may extend in the first direction DR 1.

The crossing electrode 212d may include a first crossing pattern 212PT1d, a second crossing pattern 212PT2d, and a bridge pattern 212 Bd.

The first cross pattern 212PT1d may have a symmetrical shape with respect to the second axis AX 2. The first crossing pattern 212PT1d may include a first crossing 212P1d and a plurality of second crossings 212P2 d. The first intersection 212P1d and the plurality of second intersections 212P2d may be provided integrally with each other.

The first intersection 212P1d may extend in the second direction DR 2.

The plurality of second intersections 212P2d may be symmetrical to each other with respect to the second axis AX 2. The plurality of second intersections 212P2d may face the first portions 211P1 d. A plurality of second intersections 212P2d may protrude from the first intersections 212P1 d. The plurality of second intersections 212P2d may surround the plurality of second portions 211P2 d. One of the plurality of second intersections 212P2d may extend in the first intersecting direction DRa. Another second intersection 212P2d of the plurality of second intersections 212P2d may extend in the second intersecting direction DRb.

The second cross pattern 212PT2d may be spaced apart from the first cross pattern 212PT1d, and the first portion 211P1d is located between the second cross pattern 212PT2d and the first cross pattern 212PT1 d. The second cross pattern 212PT2d may have a symmetrical shape with respect to the second axis AX 2. The second crossing pattern 212PT2d may include a third crossing 212P3d and a plurality of fourth crossings 212P4 d. The third intersection 212P3d and the plurality of fourth intersections 212P4d may be provided integrally with each other.

The third intersection 212P3d may extend in the second direction DR 2.

The plurality of fourth intersections 212P4d may be symmetrical with respect to the second axis AX 2. The plurality of fourth intersections 212P4d may face the first portion 211P1 d. A plurality of fourth intersections 212P4d may protrude from the third intersections 212P3 d. The plurality of fourth intersections 212P4d may be adjacent to the plurality of third portions 211P3d, respectively. One of the plurality of fourth intersections 212P4d may extend in the first intersecting direction DRa. Another fourth intersection 212P4d of the plurality of fourth intersections 212P4d may extend in the second intersecting direction DRb.

The bridge pattern 212Bd may electrically connect the first cross pattern 212PT1d to the second cross pattern 212PT2 d. The bridge pattern 212Bd may span the first section 211P1d in plan view while maintaining insulation from the first section 211P1 d.

According to some embodiments of the inventive concept, the plurality of second portions 211P2d, the plurality of second intersections 212P2d, the plurality of third portions 211P3d, and the plurality of fourth intersections 212P4d may be positioned adjacent to each other. The plurality of second portions 211P2d, the plurality of second intersections 212P2d, the plurality of third portions 211P3d, and the plurality of fourth intersections 212P4d may have shapes that are interdigitated with each other. The length of the boundary on which the plurality of second portions 211P2d, the plurality of second intersections 212P2d, the plurality of third portions 211P3d, and the plurality of fourth intersections 212P4d face each other may be increased. Therefore, the mutual capacitance between the electrode 211d and the crossing electrode 212d can be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 may be improved.

The outermost portion of the electrode region BD3 defined by the plurality of second portions 211P2d, the plurality of second intersections 212P2d, the plurality of third portions 211P3d, and the plurality of fourth intersections 212P4d may have an octagonal shape when viewed on a plane. For example, the outermost portion of the region defined by the plurality of second intersections 212P2d and the plurality of third intersections 211P3d may have an octagonal shape.

According to some embodiments of the inventive concept, a region in which the electrode 211d and the crossing electrode 212d cross or intersect each other while being insulated from each other may have an octagonal shape by portions extending in the first direction DR1, the second direction DR2, the first crossing direction DRa, and the second crossing direction DRb, respectively. The deviation of the interval between the electrode 211d and the intersecting electrode 212d can be reduced. Therefore, it is possible to reduce a deviation of the amount of change in the mutual capacitance between the electrode 211d and the intersecting electrode 212d before and after the input of the body 3000 (see fig. 2) of the user according to the position of the body 3000 (see fig. 2) of the user. Further, it is possible to reduce a deviation of the amount of change in the mutual capacitance between each of the electrodes 211d and the intersecting electrodes 212d before and after the input device 2000 (see fig. 2) is sensed and the input device 2000 (see fig. 2) according to the position of the input device 2000 (see fig. 2). Accordingly, the accuracy of each of the coordinates of the body 3000 (see fig. 2) of the user calculated using the sensor layer 200 and the coordinates of the input device 2000 (see fig. 2) may be improved, and the sensing reliability of the sensor layer 200 may be improved.

Fig. 10 is a plan view of a sub sensing unit according to some embodiments of the inventive concept. In the description of fig. 10, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted.

Referring to fig. 4 and 10, the plurality of sensing cells 210 may include at least one sub sensing cell 210 Ae. The at least one sub sensing unit 210Ae may include an electrode 211e, a crossing electrode 212e, and a plurality of dummy electrodes 213. A portion of electrode 211e may intersect a portion of intersecting electrode 212 e. Sensor layer 200 may obtain information about an external input through a change in mutual capacitance between electrode 211e and interdigitated electrode 212 e.

The electrode 211e may have a symmetrical shape with respect to the first point PT1, and the first axis AX1 and the second axis AX2 cross each other at the first point PT 1. Electrode 211e may include first portion 211P1e, a plurality of second portions 211P2e, and a plurality of third portions 211P3 e. First portion 211P1e, a plurality of second portions 211P2e, and a plurality of third portions 211P3e may be provided integrally with each other.

The first portion 211P1d may extend in the first direction DR 1.

The plurality of second portions 211P2e may be point-symmetrical with respect to the first point PT 1. The plurality of second portions 211P2e may protrude from the first portion 211P1 e. Each of the plurality of second portions 211P2e may include a first branch portion 211BP1e, a second branch portion 211BP2e, and a third branch portion 211BP3 e. The first branch portion 211BP1e, the second branch portion 211BP2e, and the third branch portion 211BP3e may be provided integrally with each other.

The first branch portion 211BP1e may protrude from the first portion 211P1 e. One end of the first branch portion 211BP1e may be adjacent to the first portion 211P1e, and the other end of the first branch portion 211BP1e may be adjacent to the second branch portion 211BP2 e. The first branch portion 211BP1e may extend in the second direction DR 2.

The second branch portion 211BP2e may protrude from the first branch portion 211BP1 e. One end of the second branch portion 211BP2e may be adjacent to the first branch portion 211BP1e, and the other end of the second branch portion 211BP2e may be adjacent to the third branch portion 211BP3 e. The second branch portion 211BP2e may extend in the first crossing direction DRa.

The third branch portion 211BP3e may protrude from the second branch portion 211BP2 e. One end of the third branch portion 211BP3e may be adjacent to the second branch portion 211BP2e, and the other end of the third branch portion 211BP3e may be adjacent to the first intersection 212P1 e. The third branch portion 211BP3e may extend in the first direction DR 1.

Third plurality of portions 211P3e may be spaced apart from second plurality of portions 211P2e, respectively, and first portion 211P1e is located between third plurality of portions 211P3e and second plurality of portions 211P2 e. The plurality of third portions 211P3e may surround the third intersection 212P3e and the fifth intersection 212P5e, respectively. The plurality of third portions 211P3e may be point-symmetrical with respect to the first point PT 1. A plurality of third portions 211P3e may protrude from the first portion 211P1 e. Each of the plurality of third portions 211P3e may include a fourth branch portion 211BP4e, a fifth branch portion 211BP5e, and a sixth branch portion 211BP6 e. The fourth branch 211BP4e, the fifth branch 211BP5e, and the sixth branch 211BP6e may be provided integrally with each other.

The fourth branch portion 211BP4e may protrude from the first portion 211P1 e. One end of the fourth branch 211BP4e may be adjacent to the first portion 211P1e, and the other end of the fourth branch 211BP4e may be adjacent to the fifth branch 211BP5 e. The fourth branch 211BP4e may extend in the second direction DR 2.

The fifth branch 211BP5e may protrude from the fourth branch 211BP4 e. One end of the fifth branch 211BP5e may be adjacent to the fourth branch 211BP4e, and the other end of the fifth branch 211BP5e may be adjacent to the sixth branch 211BP6 e. The fifth branch 211BP5e may extend in the second crossing direction DRb.

The sixth branch portion 211BP6e may protrude from the fifth branch portion 211BP5 e. One end of the sixth branch portion 211BP6e may be adjacent to the fifth branch portion 211BP5 e. The other end of the sixth branch portion 211BP6e may be adjacent to the fourth intersection portion 212P4 e. The sixth branch portion 211BP6e may extend in the first direction DR 1.

The crossing electrode 212e may include a first crossing pattern 212PT1e, a second crossing pattern 212PT2e, and a bridge pattern 212 Be.

The first crossing pattern 212PT1e may include a first crossing 212P1e, a second crossing 212P2e, and a third crossing 212P3 e. The first intersection 212P1e, the second intersection 212P2e, and the third intersection 212P3e may be provided integrally with one another.

The first intersection 212P1e may extend in the second direction DR 2.

The second intersection 212P2e may face the first portion 211P1 e. The second intersection 212P2e may protrude from the first intersection 212P1 e. The second intersection 212P2e may surround one of the plurality of second portions 211P2 e. The second intersection 212P2e may extend in the first intersection direction DRa.

The third intersection 212P3e may be spaced apart from the second intersection 212P2e, and the first intersection 212P1e is located between the third intersection 212P3e and the second intersection 212P2 e. The third intersection 212P3e may face the first portion 211P1 e. The third intersection 212P3e may protrude from the first intersection 212P1 e. The third intersection 212P3e may extend in the second intersection direction DRb.

The second cross pattern 212PT2e may be spaced apart from the first cross pattern 212PT1e, and the first portion 211P1e is located between the second cross pattern 212PT2e and the first cross pattern 212PT1 e. The first and second crossing patterns 212PT1e and 212PT2e may have shapes symmetrical to each other with respect to the first point PT 1. The second crossing pattern 212PT2e may include a fourth crossing 212P4e, a fifth crossing 212P5e, and a sixth crossing 212P6 e. The fourth intersection 212P4e, the fifth intersection 212P5e, and the sixth intersection 212P6e may be provided integrally with one another.

The fourth intersection 212P4e may extend in the second direction DR 2.

The fifth intersection 212P5e may face the first portion 211P1 e. The fifth intersection 212P5e may protrude from the fourth intersection 212P4 e. The fifth intersection 212P5e may extend in the second intersection direction DRb.

The sixth intersection 212P6e may be spaced apart from the fifth intersection 212P5e, and the fourth intersection 212P4e is located between the sixth intersection 212P6e and the fifth intersection 212P5 e. The sixth intersection 212P6e may face the first portion 211P1 e. The sixth intersection 212P6e may protrude from the fourth intersection 212P4 e. The sixth intersection 212P6e may surround another one of the plurality of second portions 211P2 e. The sixth intersection 212P6e may extend in the first intersection direction DRa.

The bridge pattern 212Be may electrically connect the first cross pattern 212PT1e to the second cross pattern 212PT2 e. The bridge pattern 212Bd may cross the first section 211P1e or intersect the first section 211P1e in a plan view while being insulated from the first section 211P1 e.

According to some embodiments of the inventive concept, the plurality of second portions 211P2e, the plurality of third portions 211P3e, the second intersection 212P2e, the third intersection 212P3e, the fifth intersection 212P5e, and the sixth intersection 212P6e may be positioned adjacent to each other. The plurality of second portions 211P2e, the plurality of third portions 211P3e, the second intersection 212P2e, the third intersection 212P3e, the fifth intersection 212P5e, and the sixth intersection 212P6e may have shapes that are interdigitated with each other. A length of a boundary on which each of the plurality of second portions 211P2e, each of the plurality of third portions 211P3e, the second intersection 212P2e, the third intersection 212P3e, the fifth intersection 212P5e, and the sixth intersection 212P6e face each other may be increased. Therefore, the mutual capacitance between the electrode 211e and the crossing electrode 212e can be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 may be improved.

The outermost portion of the electrode region BD4 defined by the plurality of second portions 211P2e, the plurality of third portions 211P3e, the second intersection 212P2e, the third intersection 212P3e, the fifth intersection 212P5e, and the sixth intersection 212P6e may have an octagonal shape when viewed in plan. For example, the outermost portion of the region defined by the plurality of third portions 211P3e, the second intersection 212P2e, and the sixth intersection 212P6e may have an octagonal shape.

According to some embodiments of the inventive concept, a region where the electrode 211e and the crossing electrode 212e cross or intersect while remaining insulated from each other may have an octagonal shape by portions extending in the first direction DR1, the second direction DR2, the first crossing direction DRa, and the second crossing direction DRb, respectively. The deviation of the interval between the electrode 211e and the intersecting electrode 212e can be reduced. Therefore, it is possible to reduce a deviation of the amount of change in the mutual capacitance between the electrode 211e and the intersecting electrode 212e before and after the input of the body 3000 (see fig. 2) of the user according to the position of the body 3000 (see fig. 2) of the user. Further, it is possible to reduce a deviation of the amount of change in the mutual capacitance between each of the electrodes 211e and the intersecting electrodes 212e before and after the input device 2000 (see fig. 2) is sensed and the input device 2000 (see fig. 2) according to the position of the input device 2000 (see fig. 2). Accordingly, the accuracy of each of the coordinates of the body 3000 (see fig. 2) of the user calculated using the sensor layer 200 and the coordinates of the input device 2000 (see fig. 2) may be improved, and the sensing reliability of the sensor layer 200 may be improved.

Fig. 11 is a plan view of a sub sensing unit according to some embodiments of the inventive concept. In the description of fig. 11, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted.

Referring to fig. 4 and 11, the plurality of sensing cells 210 may include at least one sub sensing cell 210 Af. The at least one sub sensing unit 210Af may include an electrode 211f, a crossing electrode 212f, and a plurality of dummy electrodes 213. Sensor layer 200 may obtain information about an external input through a change in mutual capacitance between electrode 211f and interdigitated electrode 212 f.

The electrode 211f may have a symmetrical shape with respect to the first axis AX 1. The electrode 211f may include a first portion 211P1f, a plurality of second portions 211P2f, and a plurality of third portions 211P3 f. First portion 211P1f, a plurality of second portions 211P2f, and a plurality of third portions 211P3f may be provided integrally with each other.

The first portion 211P1f may extend in the first direction DR 1.

The plurality of second portions 211P2f may be symmetrical to each other with respect to the first axis AX 1. The plurality of second portions 211P2f may protrude from the first portion 211P1 f. The plurality of second portions 211P2f may surround the second intersection 212P2f and the fifth intersection 212P5f, respectively. One second lobe 211P2f of the plurality of second lobes 211P2f may extend in the first crossing direction DRa. Another second lobe 211P2f of the plurality of second lobes 211P2f may extend in the second cross direction DRb. The second portion 211P2f may include a first branch portion 211BP1f, a second branch portion 211BP2f, and a third branch portion 211BP3 f. The first branch portion 211BP1f, the second branch portion 211BP2f, and the third branch portion 211BP3f may be provided integrally with each other.

The first branch portion 211BP1f may protrude from the first portion 211P1 f. One end of the first branch portion 211BP1f may be adjacent to the first portion 211P1f, and the other end of the first branch portion 211BP1f may be adjacent to the second branch portion 211BP2 f. The first branch portion 211BP1f may extend in the second direction DR 2.

The second branch portion 211BP2f may protrude from the first branch portion 211BP1 f. One end of the second branch portion 211BP2f may be adjacent to the first branch portion 211BP1f, and the other end of the second branch portion 211BP2f may be adjacent to the third branch portion 211BP3 f. The second branch portion 211BP2f may extend in the first crossing direction DRa or the second crossing direction DRb.

The third branch portion 211BP3f may protrude from the second branch portion 211BP2 f. One end of the third branch portion 211BP3f may be adjacent to the second branch portion 211BP2f, and the other end of the third branch portion 211BP3f may be adjacent to the first intersection 212P1 f. The third branch portion 211BP3f may extend in the first direction DR 1.

The plurality of third portions 211P3f may be separated from the plurality of second portions 211P2f, respectively, and the first and fourth intersections 212P1f and 212P4f are located between the plurality of third portions 211P3f and the plurality of second portions 211P2 f. The plurality of third portions 211P3f may be symmetrical with respect to the first axis AX 1. A plurality of third portions 211P3f may protrude from the first portion 211P1 f. Each of the plurality of third portions 211P3f may include a fourth branch portion 211BP4f, a fifth branch portion 211BP5f, and a sixth branch portion 211BP6 f. The fourth branch 211BP4f, the fifth branch 211BP5f, and the sixth branch 211BP6f may be provided integrally with each other.

The fourth branch portion 211BP4f may protrude from the first portion 211P1 f. One end of the fourth branch 211BP4f may be adjacent to the first portion 211P1f, and the other end of the fourth branch 211BP4f may be adjacent to the fifth branch 211BP5 f. The fourth branch 211BP4f may extend in the second direction DR 2.

The fifth branch 211BP5f may protrude from the fourth branch 211BP4 f. One end of the fifth branch 211BP5f may be adjacent to the fourth branch 211BP4f, and the other end of the fifth branch 211BP5f may be adjacent to the sixth branch 211BP6 f. The fifth branch 211BP5f may extend in the first crossing direction DRa or the second crossing direction DRb.

The sixth branch portion 211BP6f may protrude from the fifth branch portion 211BP5 f. One end of the sixth branch 211BP6f may be adjacent to the fifth branch 211BP5f, and the other end of the sixth branch 211BP6f may be adjacent to the first intersection 212P1 f. The sixth branch portion 211BP6f may extend in the first direction DR 1.

The crossing electrode 212f may include a first crossing pattern 212PT1f, a second crossing pattern 212PT2f, and a bridge pattern 212 Bf.

The first crossing pattern 212PT1f may include a first crossing 212P1f, a second crossing 212P2f, and a third crossing 212P3 f. The first intersection 212P1f, the second intersection 212P2f, and the third intersection 212P3f may be provided integrally with one another.

The first intersection 212P1f may extend in the second direction DR 2.

The second intersection 212P2f may face the first portion 211P1 f. The second intersection 212P2f may protrude from the first intersection 212P1 f. The second intersection 212P2f may extend in the first intersection direction DRa.

The third intersection 212P3f may be spaced apart from the second intersection 212P2f, and the first intersection 212P1f is located between the third intersection 212P3f and the second intersection 212P2 f. The third intersection 212P3f may face the first portion 211P1 f. The third intersection 212P3f may protrude from the first intersection 212P1 f. The third intersection 212P3f may surround one of the plurality of third portions 211P3 f. The third intersection 212P3f may extend in the second intersection direction DRb.

The second cross pattern 212PT2f may be spaced apart from the first cross pattern 212PT1f, and the first portion 211P1f is located between the second cross pattern 212PT2f and the first cross pattern 212PT1 f. The first and second crossing patterns 212PT1f and 212PT2f may have shapes symmetrical to each other with respect to the first axis AX 1. The second crossing pattern 212PT2f may include a fourth crossing 212P4f, a fifth crossing 212P5f, and a sixth crossing 212P6 f. The fourth intersection 212P4f, the fifth intersection 212P5f, and the sixth intersection 212P6f may be provided integrally with one another.

The fourth intersection 212P4f may extend in the second direction DR 2.

The fifth intersection 212P5f may face the first portion 211P1 f. The fifth intersection 212P5f may protrude from the fourth intersection 212P4 f. The fifth intersection 212P5f may extend in the second intersection direction DRb.

The sixth intersection 212P6f may be spaced apart from the fifth intersection 212P5f, and the fourth intersection 212P4f is located between the sixth intersection 212P6f and the fifth intersection 212P5 f. The sixth intersection 212P6f may face the first portion 211P1 f. The sixth intersection 212P6f may protrude from the fourth intersection 212P4 f. The sixth intersection 212P6f may surround another one of the plurality of third portions 211P3 f. The sixth intersection 212P6f may extend in the first intersection direction DRa.

The bridge pattern 212Bf may electrically connect the first cross pattern 212PT1f to the second cross pattern 212PT2 f. The bridge pattern 212Bf may cross the first portion 211P1f or intersect the first portion 211P1f from a plan view while maintaining insulation from the first portion 211P1 f.

According to some embodiments of the inventive concept, the plurality of second portions 211P2f, the plurality of third portions 211P3f, the second intersection 212P2f, the third intersection 212P3f, the fifth intersection 212P5f, and the sixth intersection 212P6f may be positioned adjacent to each other. The plurality of second portions 211P2f, the plurality of third portions 211P3f, the second intersection 212P2f, the third intersection 212P3f, the fifth intersection 212P5f, and the sixth intersection 212P6f may have shapes that are interdigitated with each other. A length of a boundary on which each of the plurality of second portions 211P2f, each of the plurality of third portions 211P3f, the second intersection 212P2f, the third intersection 212P3f, the fifth intersection 212P5f, and the sixth intersection 212P6f face each other may be increased. Therefore, the mutual capacitance between electrode 211f and interdigitated electrode 212f may be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 may be improved.

The outermost portion of the electrode region BD5 defined by the plurality of second portions 211P2f, the plurality of third portions 211P3f, the second intersection 212P2f, the third intersection 212P3f, the fifth intersection 212P5f, and the sixth intersection 212P6f may have an octagonal shape when viewed in plan. For example, the outermost portion of the region defined by the plurality of second portions 211P2f, third intersection 212P3f, and sixth intersection 212P6f may have an octagonal shape.

According to some embodiments of the inventive concept, a region in which the electrode 211f and the crossing electrode 212f cross or intersect while remaining insulated from each other may have an octagonal shape by portions extending in the first direction DR1, the second direction DR2, the first crossing direction DRa, and the second crossing direction DRb, respectively. The deviation of the interval between the electrode 211f and the intersecting electrode 212f can be reduced. Therefore, it is possible to reduce a deviation of the amount of change in the mutual capacitance between the electrode 211f and the intersecting electrode 212f before and after the input of the body 3000 (see fig. 2) of the user according to the position of the body 3000 (see fig. 2) of the user. Further, it is possible to reduce a deviation of the amount of change in the mutual capacitance between each of the electrodes 211f and the intersecting electrodes 212f before and after the input device 2000 (see fig. 2) is sensed and the input device 2000 (see fig. 2) according to the position of the input device 2000 (see fig. 2). Accordingly, the accuracy of each of the coordinates of the body 3000 (see fig. 2) of the user calculated using the sensor layer 200 and the coordinates of the input device 2000 (see fig. 2) may be improved, and the sensing reliability of the sensor layer 200 may be improved.

Fig. 12 is a plan view of a sub sensing unit according to some embodiments of the inventive concept. In the description of fig. 12, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted.

Referring to fig. 4 and 12, the plurality of sensing cells 210 may include at least one sub sensing cell 210 Ag. The at least one sub sensing unit 210Ag may include an electrode 211g, a crossing electrode 212g, and a plurality of dummy electrodes 213. Sensor layer 200 may acquire information about an external input through a change in mutual capacitance between electrode 211g and interdigitated electrode 212 g.

The electrode 211g may have a symmetrical shape with respect to the first point PT 1. Electrode 211g may include first portion 211P1g, a plurality of second portions 211P2g, and a plurality of third portions 211P3 g. First portion 211P1g, a plurality of second portions 211P2g, and a plurality of third portions 211P3g may be provided integrally with each other.

The first portion 211P1g may extend in the first direction DR 1.

The plurality of second portions 211P2g may be point-symmetrical with respect to the first point PT 1. The plurality of second portions 211P2g may protrude from the first portion 211P1 g. The plurality of second portions 211P2g may surround the second and sixth intersections 212P2g and 212P6g, respectively. Each of the plurality of second portions 211P2g may include a first branch portion 211BP1g, a second branch portion 211BP2g, and a third branch portion 211BP3 g. The first branch portion 211BP1g, the second branch portion 211BP2g, and the third branch portion 211BP3g may be provided integrally with each other.

The first branch portion 211BP1g may protrude from the first portion 211P1 g. One end of the first branch portion 211BP1g may be adjacent to the first portion 211P1g, and the other end of the first branch portion 211BP1g may be adjacent to the second branch portion 211BP2 g. The first branch portion 211BP1g may extend in the second direction DR 2.

The second branch portion 211BP2g may protrude from the first branch portion 211BP1 g. One end of the second branch portion 211BP2g may be adjacent to the first branch portion 211BP1g, and the other end of the second branch portion 211BP2g may be adjacent to the third branch portion 211BP3 g. The second branch portion 211BP2g may extend in the first crossing direction DRa.

The third branch portion 211BP3g may protrude from the second branch portion 211BP2 g. One end of the third branch portion 211BP3g may be adjacent to the second branch portion 211BP2g, and the other end of the third branch portion 211BP3g may be adjacent to the first intersection 212P1 g. The third branch portion 211BP3g may extend in the first direction DR 1.

The plurality of third portions 211P3g may be separated from the plurality of second portions 211P2g, respectively, and the first and fourth intersections 212P1g and 212P4g are located between the plurality of third portions 211P3g and the plurality of second portions 211P2 g. The plurality of third portions 211P3g may be point-symmetrical with respect to the first point PT 1. A plurality of third portions 211P3g may protrude from the first portion 211P1 g. Each of the plurality of third portions 211P3g may include a fourth branch portion 211BP4g, a fifth branch portion 211BP5g, and a sixth branch portion 211BP6 g. The fourth branch 211BP4g, the fifth branch 211BP5g, and the sixth branch 211BP6g may be provided integrally with each other.

The fourth branch portion 211BP4g may protrude from the first portion 211P1 g. One end of the fourth branch 211BP4g may be adjacent to the first portion 211P1g, and the other end of the fourth branch 211BP4g may be adjacent to the fifth branch 211BP5 g. The fourth branch 211BP4g may extend in the second direction DR 2.

The fifth branch 211BP5g may protrude from the fourth branch 211BP4 g. One end of the fifth branch 211BP5g may be adjacent to the fourth branch 211BP4g, and the other end of the fifth branch 211BP5g may be adjacent to the sixth branch 211BP6 g. The fifth branch 211BP5g may extend in the second crossing direction DRb.

The sixth branch portion 211BP6g may protrude from the fifth branch portion 211BP5 g. One end of the sixth branch 211BP6g may be adjacent to the fifth branch 211BP5g, and the other end of the sixth branch 211BP6g may be adjacent to the first intersection 212P1 g. The sixth branch portion 211BP6g may extend in the first direction DR 1.

The crossing electrode 212g may include a first crossing pattern 212PT1g, a second crossing pattern 212PT2g, and a bridge pattern 212 Bg.

The first crossing pattern 212PT1g may include a first crossing 212P1g, a second crossing 212P2g, and a third crossing 212P3 g.

The first intersection 212P1g may extend in the second direction DR 2.

The second intersection 212P2g may face the first portion 211P1 g. The second intersection 212P2g may protrude from the first intersection 212P1 g. The second intersection 212P2g may extend in the first intersection direction DRa.

The third intersection 212P3g may be spaced apart from the second intersection 212P2g, and the first intersection 212P1g is located between the third intersection 212P3g and the second intersection 212P2 g. The third intersection 212P3g may face the first portion 211P1 g. The third intersection 212P3g may protrude from the first intersection 212P1 g. The third intersection 212P3g may surround one of the plurality of third portions 211P3 g. The third intersection 212P3g may extend in the second intersection direction DRb.

The second cross pattern 212PT2g may be spaced apart from the first cross pattern 212PT1g, and the first portion 211P1g is located between the second cross pattern 212PT2g and the first cross pattern 212PT1 g. The first and second crossing patterns 212PT1g and 212PT2g may be point-symmetrical with respect to the first point PT 1. The second crossing pattern 212PT2g may include a fourth crossing 212P4g, a fifth crossing 212P5g, and a sixth crossing 212P6 g. The fourth intersection 212P4g, the fifth intersection 212P5g, and the sixth intersection 212P6g may be provided integrally with one another.

The fourth intersection 212P4g may extend in the second direction DR 2.

The fifth intersection 212P5g may face the first portion 211P1 g. The fifth intersection 212P5g may protrude from the fourth intersection 212P4 g. The fifth intersection 212P5g may surround another one of the plurality of third portions 211P3 g. The fifth intersection 212P5g may extend in the second intersection direction DRb.

The sixth intersection 212P6g may be spaced apart from the fifth intersection 212P5g, and the fourth intersection 212P4g is located between the sixth intersection 212P6g and the fifth intersection 212P5 g. The sixth intersection 212P6g may face the first portion 211P1 g. The sixth intersection 212P6g may protrude from the fourth intersection 212P4 g. The sixth intersection 212P6g may extend in the first intersection direction DRa.

The bridge pattern 212Bg may electrically connect the first cross pattern 212PT1g to the second cross pattern 212PT2 g. The bridge pattern 212Bg may cross or intersect the first portion 211P1g in a plan view while maintaining insulation from the first portion 211P1 g.

According to some embodiments of the inventive concept, the plurality of second portions 211P2g, the plurality of third portions 211P3g, the second intersection 212P2g, the third intersection 212P3g, the fifth intersection 212P5g, and the sixth intersection 212P6g may be positioned adjacent to each other. The plurality of second portions 211P2g, the plurality of third portions 211P3g, the second intersection 212P2g, the third intersection 212P3g, the fifth intersection 212P5g, and the sixth intersection 212P6g may have shapes that are interdigitated with each other. A length of a boundary on which each of the plurality of second portions 211P2g, each of the plurality of third portions 211P3g, the second intersection 212P2g, the third intersection 212P3g, the fifth intersection 212P5g, and the sixth intersection 212P6g face each other may be increased. Therefore, the mutual capacitance between the electrode 211g and the intersecting electrode 212g can be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 may be improved.

The outermost portion of the electrode region BD6 defined by the plurality of second portions 211P2g, the plurality of third portions 211P3g, the second intersection 212P2g, the third intersection 212P3g, the fifth intersection 212P5g, and the sixth intersection 212P6g may have an octagonal shape when viewed in plan. For example, the outermost portion of the region defined by the plurality of second portions 211P2g, the third intersection 212P3g, and the fifth intersection 212P5g may have an octagonal shape.

According to some embodiments of the inventive concept, a region in which the electrode 211g and the crossing electrode 212g cross or intersect each other while remaining insulated from each other may have an octagonal shape by portions extending in the first direction DR1, the second direction DR2, the first crossing direction DRa, and the second crossing direction DRb, respectively. The deviation of the interval between the electrode 211g and the intersecting electrode 212g can be reduced. Therefore, it is possible to reduce a deviation of the amount of change in the mutual capacitance between the electrode 211g and the intersecting electrode 212g before and after the input of the body 3000 (see fig. 2) of the user according to the position of the body 3000 (see fig. 2) of the user. Further, it is possible to reduce a deviation of the amount of change in the mutual capacitance between each of the electrodes 211g and the intersecting electrodes 212g before and after the input device 2000 (see fig. 2) is sensed and the input device 2000 (see fig. 2) according to the position of the input device 2000 (see fig. 2). Accordingly, the accuracy of each of the coordinates of the body 3000 (see fig. 2) of the user calculated using the sensor layer 200 and the coordinates of the input device 2000 (see fig. 2) may be improved, and the sensing reliability of the sensor layer 200 may be improved.

Fig. 13 is a plan view of a sub sensing unit according to some embodiments of the inventive concept. In the description of fig. 13, the same reference numerals are used for the components described in fig. 5A, and the description thereof is omitted.

Referring to fig. 4 and 13, the plurality of sensing cells 210 may include at least one sub sensing cell 210 Ah. The at least one sub sensing unit 210Ah may include an electrode 211h, a crossing electrode 212h, and a plurality of dummy electrodes 213. Sensor layer 200 may obtain information about an external input through a change in mutual capacitance between electrode 211h and interdigitated electrode 212 h.

The electrode 211h may have a symmetrical shape with respect to the first axis AX1 and the second axis AX 2. The electrode 211h may include a first portion 211P1h and a plurality of second portions 211P2 h. The first portion 211P1h and the plurality of second portions 211P2h may be provided integrally with each other.

The first portion 211P1h may extend in the first direction DR 1.

The plurality of second portions 211P2h may be symmetrical to each other with respect to the first axis AX1 and the second axis AX 2. The plurality of second portions 211P2h may protrude from the first portion 211P1 h. The plurality of second portions 211P2h may surround the plurality of second intersections 212P2 h. Each of the plurality of second portions 211P2h may extend in the first crossing direction DRa or the second crossing direction DRb.

The crossing electrode 212h may include a first crossing pattern 212PT1h, a second crossing pattern 212PT2h, and a bridge pattern 212 Bh.

The first cross pattern 212PT1h may have a symmetrical shape with respect to the second axis AX 2. The first crossing pattern 212PT1h may include a first crossing 212P1h and a plurality of second crossings 212P2 h.

The first intersection 212P1h may extend in the second direction DR 2.

The plurality of second intersections 212P2h may face the first portions 211P1 h. A plurality of second intersections 212P2h may protrude from the first intersections 212P1 h. The plurality of second intersections 212P2h may extend in the first intersecting direction DRa or the second intersecting direction DRb. The plurality of second intersections 212P2h may be symmetrical to each other with respect to the second axis AX 2.

The second cross pattern 212PT2h may be spaced apart from the first cross pattern 212PT1h, and the first portion 211P1h is located between the second cross pattern 212PT2h and the first cross pattern 212PT1 h. The first and second crossing patterns 212PT1h and 212PT2h may be symmetrical with respect to the first axis AX 1.

The bridge pattern 212Bh may electrically connect the first cross pattern 212PT1h to the second cross pattern 212PT2 h. The bridge pattern 212Bh may cross or intersect the first portion 211P1h while maintaining insulation from the first portion 211P1 h.

According to some embodiments of the inventive concept, the electrode 211h and the crossing electrode 212h may be positioned adjacent to each other. The electrode 211h and the crossing electrode 212h may have shapes interdigitated with each other. The length of the boundary at which the upper electrode 211h and the crossing electrode 212h face each other may be increased. Therefore, the mutual capacitance between the electrode 211h and the crossing electrode 212h can be increased. Further, the amount of change in mutual capacitance before and after input of the user's body 3000 (see fig. 2) can be increased. Accordingly, the sensing sensitivity of the sensor layer 200 may be improved.

Fig. 14A is a view illustrating a sensor layer in a first mode according to some embodiments of the inventive concept, and fig. 14B is a view illustrating a sensor layer in a second mode according to some embodiments of the inventive concept.

Referring to fig. 14A and 14B, a plurality of sensing units 210 may be positioned in the active area 200A. Fig. 14A and 14B show 16 sensing units as an example, but the operation of the inventive concept is not limited by the number of sensing units. One sensing unit 210 may include at least one sub-sensing unit 210A. Fig. 14A and 14B illustrate an example in which one sensing unit 210 includes one sub sensing unit 210A, to which embodiments according to the inventive concept are not limited.

In the first mode, each of the plurality of electrodes 211 may operate as a transmitting electrode and each of the plurality of crossing electrodes 212 may operate as a receiving electrode. However, this is merely an example. For example, the operation of the plurality of electrodes 211 and the plurality of crossing electrodes 212 according to some embodiments of the inventive concept is not limited thereto. For example, in the first mode, each of the plurality of crossing electrodes 212 may operate as a transmitting electrode, and each of the plurality of electrodes 211 may operate as a receiving electrode. In the first mode, the sensor driver SC may sense an external input by sensing a change in mutual capacitance generated between the electrodes 211 and the crossing electrodes 212.

The plurality of lines 220 (see fig. 4) may include a plurality of first lines 221 and a plurality of second lines 222. The plurality of first lines 221 may be electrically connected to the plurality of electrodes 211, respectively. The plurality of second lines 222 may be electrically connected to the plurality of crossing electrodes 212.

In the first mode, the sensor driver SC may provide the driving signal S1 to the plurality of electrodes 211. In the first mode, sensor driver SC may receive sense signals S2 from the plurality of crossing electrodes 212. Accordingly, the sensor driver SC can acquire the coordinate values of the position at which the input is provided based on the change amounts of the sensing signals S1 and S2.

When the input device 2000 (see fig. 2) is in proximity to the sensor layer 200 (see fig. 4), it may enter a second mode for sensing the sensor layer 200 (see fig. 4). The input device 2000 (see fig. 2) may transmit and receive data to and from the sensor driver SC through the sensor layer 200 (see fig. 4).

In the second mode, each of the plurality of electrodes 211 and the plurality of intersecting electrodes 212 may serve as a receiving electrode for supplying signals Sa and Sb supplied from an input device 2000 (see fig. 2) to the sensor driver SC. In this case, the signals Sa and Sb may be referred to as downlink signals. However, this is merely an example. For example, the operations of the signals Sa and Sb according to some embodiments of the inventive concept are not limited thereto. For example, in the second mode, each of the plurality of electrodes 211 and the plurality of intersecting electrodes 212 may serve as a transmitting electrode for supplying the signals Sa and Sb supplied from the sensor driver SC to the input device 2000 (see fig. 2). In this case, the signals Sa and Sb may be referred to as uplink signals. That is, in the second mode, the plurality of electrodes 211 and the plurality of intersecting electrodes 212 may function as transmitting electrodes or receiving electrodes.

Fig. 14C is a plan view of a sensor layer according to some embodiments of the inventive concept.

Referring to fig. 4 and 14C, a plurality of sensing units 210 may be positioned in the active area 200A. One sensing unit 210 may include four sub-sensing units 210 Ai.

The plurality of lines 220 may include a plurality of first lines 221 and a plurality of second lines 222 electrically connected to the plurality of sub sensing units 210 Ai. Each of the plurality of first lines 221 may be connected to the two sub sensing units 210Ai, and each of the plurality of second lines 222 may be connected to the two sub sensing units 210 Ai.

According to some embodiments of the inventive concept, one line 220 may be connected to the plurality of sub sensing units 210 Ai. Even if one sensing unit is divided into a plurality of sub-sensing units, the number of lines required when a signal is supplied to the sensor layer 200 may be the same as the number of lines when one sensing unit is not divided into a plurality of sub-sensing units. In this case, since an additional line is not required, the surface area of the peripheral region 200N may not be increased. Therefore, a narrow bezel can be realized.

Fig. 14D is a plan view of a sensor layer according to some embodiments of the inventive concept.

Referring to fig. 4 and 14D, a plurality of sensing units 210 may be positioned in the active area 200A. One sensing unit 210 may include 16 sub-sensing units 210 Aj.

The plurality of lines 220 may include a plurality of first lines 221 and a plurality of second lines 222 electrically connected to the plurality of sub sensing cells 210 Aj. Each of the plurality of first lines 221 may be connected to four sub sensing cells 210 Aj. Each of the plurality of second lines 222 may be connected to the four sub sensing cells 210 Aj.

According to some embodiments of the inventive concept, one line 220 may be connected to a plurality of sub sensing units 210 Aj. Even if one sensing unit is divided into a plurality of sub-sensing units, the number of lines required when a signal is supplied to the sensor layer 200 may be the same as the number of lines when one sensing unit is not divided into a plurality of sub-sensing units. In this case, since an additional line is not required, the surface area of the peripheral region 200N may not be increased. Therefore, a narrow bezel can be realized.

According to some embodiments of the inventive concept, an electronic device may include a display layer and a sensor layer. The sensor layer may include electrodes and interdigitated electrodes. The electrodes and the crossing electrodes may be positioned adjacent to each other. A portion of the electrodes and a portion of the interdigitated electrodes may have shapes that are interdigitated with one another. The length of the boundary on which a portion of the electrodes and a portion of the crossing electrodes face each other may be increased. Thus, the mutual capacitance between the electrode and the crossing electrode can be increased. In addition, the amount of change in mutual capacitance before and after the user's input can be increased. Accordingly, the sensing sensitivity of the sensor layer may be improved.

According to some embodiments of the inventive concept, a region in which the electrodes and the intersecting electrodes intersect or cross each other in a plan view while maintaining insulation from each other may have an octagonal shape by portions extending in the first direction, the second direction, the first intersecting direction, and the second intersecting direction, respectively. The deviation of the spacing between the electrodes and the crossing electrodes can be reduced. It is possible to reduce a deviation of the amount of change in the mutual capacitance between the electrodes before and after the input by the user and the intersecting electrodes according to the position of the input by the user. In addition, it is possible to reduce a deviation in the amount of change in capacitance between each of the electrodes and the intersecting electrodes and the input device. Accordingly, the accuracy of each of the coordinates calculated using the sensor layer and the coordinates of the input device of the input of the user may be improved, and the sensing reliability of the sensor layer may be improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the inventive concept. Thus, it is intended that the present disclosure cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Therefore, the true scope of the inventive concept should be determined by the technical scope of the appended claims and equivalents thereof.

Claims

1. An electronic device, the electronic device comprising:

a display layer; and

a sensor layer on the display layer, the sensor layer having an active area and a peripheral area adjacent to the active area, and including a plurality of sensing cells in the active area and a plurality of lines in the peripheral area,

wherein each of the plurality of sensing units includes at least one sub-sensing unit,

the at least one sub-sensing unit includes: a first pattern including a first portion and a second portion protruding from the first portion; a first crossing pattern including a first crossing portion and a second crossing portion protruding from the first crossing portion; a second crossing pattern spaced apart from the first crossing pattern with the first portion located between the second crossing pattern and the first crossing pattern; and a bridge pattern electrically connected to the first and second crossing patterns, wherein the bridge pattern crosses and is insulated from the first portion in a plan view,

the first portion extends in a first direction,

the first intersecting portion extends in a second direction intersecting the first direction,

the second portion extends in a first intersecting direction intersecting the first direction and the second direction to face the first intersecting portion, and

the second intersecting portion extends in the first intersecting direction to face the first portion.

2. The electronic device according to claim 1, wherein the second portion is provided as a plurality of second portions, the second intersection is provided as a plurality of second intersections, and the plurality of second portions surround the plurality of second intersections, respectively.

3. The electronic device according to claim 1, wherein the first pattern has a shape in which a shape symmetrical with respect to a first axis extending in the first direction is symmetrical with respect to a second axis extending in the second direction,

the first crossing pattern has a symmetrical shape with respect to the second axis, and

the first and second crossing patterns have shapes symmetrical to each other with respect to the first axis.

4. The electronic device of claim 3, wherein the first pattern further comprises a third portion protruding from the first portion in the second direction, and

the second portion further comprises: a first branch portion adjacent to the first portion and extending in the second direction; a second branch portion adjacent to the first branch portion and extending in the first cross direction; and a third branch portion adjacent to the second branch portion, facing the first intersection portion, and extending in the first direction.

5. The electronic device of claim 4, wherein the second intersection is between the second portion and the third portion.

6. The electronic device of claim 3, wherein the first crossing pattern further comprises a third crossing protruding from the first crossing in the first direction, and

the second intersection includes: a first intersecting branch portion adjacent to the first intersecting portion and extending in the first direction; a second intersecting branch portion adjacent to the first intersecting branch portion and extending in the first intersecting direction; and a third intersecting branch portion adjacent to the second intersecting branch portion, facing the first portion, and extending in the second direction.

7. The electronic device of claim 6, wherein the second portion is between the second intersection and the third intersection.

8. The electronic device of claim 1, wherein the first pattern further comprises: a third portion spaced apart from the second portion with the first crossing pattern located therebetween and protruding from the first portion,

the second portion includes: a first branch portion adjacent to the first portion and extending in the second direction; a second branch portion adjacent to the first branch portion and extending in the first cross direction; and a third branch portion adjacent to the second branch portion, facing the first intersection portion, and extending in the first direction, and

the third section includes: a fourth branch portion adjacent to the first portion and extending in the second direction; a fifth branch portion adjacent to the fourth branch portion and extending in a second intersecting direction intersecting the first intersecting direction; and a sixth branch portion adjacent to the fifth branch portion and extending in the first direction.

9. The electronic device of claim 8, wherein the first crossing pattern further comprises a third crossing protruding from the first crossing, and

the second portion surrounds the second intersection, and the third intersection surrounds the third portion.

10. The electronic device of claim 9, wherein the first pattern has a shape that is symmetrical with respect to a first axis extending in the first direction, and

11. The electronic device according to claim 9, wherein the first pattern has a shape symmetrical with respect to a first point at which a first axis extending in the first direction and a second axis extending in the second direction cross each other, and

the first and second crossing patterns have shapes symmetrical to each other with respect to the first point.

12. The electronic device of claim 1, wherein the first pattern further comprises: a third portion spaced apart from the second portion with the first portion located therebetween and protruding from the first portion,

the second portion includes: a first branch portion adjacent to the first portion and extending in the second direction; a second branch portion adjacent to the first branch portion and extending in the first cross direction; and a third branch portion adjacent to the second branch portion and extending in the first direction, and

13. The electronic device of claim 12, wherein the second crossing pattern comprises: a third intersection extending in the second direction and spaced apart from the first intersection with the first portion located therebetween; and a fourth intersection portion protruding from the third intersection portion and

the second intersection surrounds the second portion, and the third portion surrounds the fourth intersection.

14. The electronic device of claim 13, wherein each of the first pattern, the first crossing pattern, and the second crossing pattern has a shape that is symmetrical with respect to a second axis extending in the second direction.

15. The electronic device according to claim 13, wherein the first pattern has a shape symmetrical with respect to a first point at which a first axis extending in the first direction and a second axis extending in the second direction cross each other, and

16. The electronic device of claim 1, wherein the first pattern, the first crossing pattern, the second crossing pattern, and the bridging pattern have a grid structure.

17. The electronic device of claim 1, wherein the at least one sub-sensing unit is provided as a plurality of sub-sensing units, and

the plurality of lines includes a first line and a second line electrically connected to the plurality of sub sensing units.

18. The electronic device of claim 17, wherein the first line is electrically connected to the first pattern, and

the second line is electrically connected to the first crossing pattern, the second crossing pattern, and the bridge pattern.

19. An electronic device, the electronic device comprising:

a display layer; and

a sensor layer on the display layer, the sensor layer having an active area and a peripheral area adjacent to the active area, the sensor layer including a plurality of sensing cells in the active area and a plurality of lines in the peripheral area, wherein the sensor layer is configured to sense an input of an input device,

the at least one sub-sensing unit includes: an electrode including a first portion extending in a first direction and a plurality of second portions protruding from the first portion; and a cross electrode including a plurality of first cross portions extending in a second direction crossing the first direction, a plurality of second cross portions protruding from the plurality of first cross portions, respectively, and a bridge pattern insulated from the first portions,

each of the plurality of second portions includes: a first branch portion extending in the second direction; a second branch portion extending from the first branch portion and extending in an intersecting direction intersecting the first direction and the second direction; and a third branch portion extending from the second branch portion and extending in the first direction, and

the sensor layer is configured to sense the input by touch through a change in mutual capacitance generated between the electrodes and the crossing electrodes, and to sense the input through the input device through a change in capacitance of each of the electrodes and the crossing electrodes.

20. The electronic device of claim 19, wherein each of the plurality of sensing cells comprises a plurality of sub-sensing cells,

the plurality of lines includes a first line and a second line,

the first line is electrically connected to the electrode of each of the plurality of sub sensing units, and

the second line is electrically connected to the crossing electrode of each of the plurality of sub sensing units.

21. The electronic device of claim 19, wherein an outermost portion of the electrode area defined by the plurality of second portions and the plurality of second intersections has an octagonal shape in plan view.

22. The electronic device of claim 19, wherein the second branch portion of each of the plurality of second portions is adjacent to each of the plurality of second intersections.

23. The electronic device of claim 19, wherein each of the electrodes and the interdigitated electrodes has a shape that is symmetrical with respect to a first axis extending in the first direction.

24. The electronic device of claim 19, wherein each of the electrodes and the interdigitated electrodes has a shape that is symmetrical with respect to a second axis extending in the second direction.

25. The electronic device of claim 19, wherein each of the electrodes and the intersecting electrodes has a shape that is point-symmetric with respect to a first point at which a first axis extending in the first direction and a second axis extending in the second direction intersect with each other.